diff --git a/src/command/cmd_ac.c b/src/command/cmd_ac.c
index 8654a07b..0cc4a170 100644
--- a/src/command/cmd_ac.c
+++ b/src/command/cmd_ac.c
@@ -294,6 +294,8 @@ static Autocomplete vcard_togglable_param_ac;
 static Autocomplete vcard_toggle_ac;
 static Autocomplete vcard_address_type_ac;
 
+static GHashTable* ac_funcs = NULL;
+
 /*!
  * \brief Initialization of auto completion for commands.
  *
@@ -1297,6 +1299,78 @@ cmd_ac_init(void)
     vcard_address_type_ac = autocomplete_new();
     autocomplete_add(vcard_address_type_ac, "domestic");
     autocomplete_add(vcard_address_type_ac, "international");
+
+    if (ac_funcs != NULL)
+        g_hash_table_destroy(ac_funcs);
+    ac_funcs = g_hash_table_new(g_str_hash, g_str_equal);
+    g_hash_table_insert(ac_funcs, "/account", _account_autocomplete);
+    g_hash_table_insert(ac_funcs, "/affiliation", _affiliation_autocomplete);
+    g_hash_table_insert(ac_funcs, "/alias", _alias_autocomplete);
+    g_hash_table_insert(ac_funcs, "/autoaway", _autoaway_autocomplete);
+    g_hash_table_insert(ac_funcs, "/autoconnect", _autoconnect_autocomplete);
+    g_hash_table_insert(ac_funcs, "/avatar", _avatar_autocomplete);
+    g_hash_table_insert(ac_funcs, "/ban", _ban_autocomplete);
+    g_hash_table_insert(ac_funcs, "/blocked", _blocked_autocomplete);
+    g_hash_table_insert(ac_funcs, "/bookmark", _bookmark_autocomplete);
+    g_hash_table_insert(ac_funcs, "/clear", _clear_autocomplete);
+    g_hash_table_insert(ac_funcs, "/close", _close_autocomplete);
+    g_hash_table_insert(ac_funcs, "/cmd", _adhoc_cmd_autocomplete);
+    g_hash_table_insert(ac_funcs, "/color", _color_autocomplete);
+    g_hash_table_insert(ac_funcs, "/connect", _connect_autocomplete);
+    g_hash_table_insert(ac_funcs, "/console", _console_autocomplete);
+    g_hash_table_insert(ac_funcs, "/correct", _correct_autocomplete);
+    g_hash_table_insert(ac_funcs, "/correction", _correction_autocomplete);
+    g_hash_table_insert(ac_funcs, "/executable", _executable_autocomplete);
+    g_hash_table_insert(ac_funcs, "/form", _form_autocomplete);
+    g_hash_table_insert(ac_funcs, "/help", _help_autocomplete);
+    g_hash_table_insert(ac_funcs, "/inpblock", _inpblock_autocomplete);
+    g_hash_table_insert(ac_funcs, "/intype", _intype_autocomplete);
+    g_hash_table_insert(ac_funcs, "/invite", _invite_autocomplete);
+    g_hash_table_insert(ac_funcs, "/join", _join_autocomplete);
+    g_hash_table_insert(ac_funcs, "/kick", _kick_autocomplete);
+    g_hash_table_insert(ac_funcs, "/lastactivity", _lastactivity_autocomplete);
+    g_hash_table_insert(ac_funcs, "/log", _log_autocomplete);
+    g_hash_table_insert(ac_funcs, "/logging", _logging_autocomplete);
+    g_hash_table_insert(ac_funcs, "/mood", _mood_autocomplete);
+    g_hash_table_insert(ac_funcs, "/notify", _notify_autocomplete);
+    g_hash_table_insert(ac_funcs, "/occupants", _occupants_autocomplete);
+#ifdef HAVE_OMEMO
+    g_hash_table_insert(ac_funcs, "/omemo", _omemo_autocomplete);
+#endif
+#ifdef HAVE_LIBOTR
+    g_hash_table_insert(ac_funcs, "/otr", _otr_autocomplete);
+#endif
+#ifdef HAVE_LIBGPGME
+    g_hash_table_insert(ac_funcs, "/ox", _ox_autocomplete);
+    g_hash_table_insert(ac_funcs, "/pgp", _pgp_autocomplete);
+#endif
+    g_hash_table_insert(ac_funcs, "/plugins", _plugins_autocomplete);
+    g_hash_table_insert(ac_funcs, "/presence", _presence_autocomplete);
+    g_hash_table_insert(ac_funcs, "/receipts", _receipts_autocomplete);
+    g_hash_table_insert(ac_funcs, "/reconnect", _reconnect_autocomplete);
+    g_hash_table_insert(ac_funcs, "/resource", _resource_autocomplete);
+    g_hash_table_insert(ac_funcs, "/role", _role_autocomplete);
+    g_hash_table_insert(ac_funcs, "/rooms", _rooms_autocomplete);
+    g_hash_table_insert(ac_funcs, "/roster", _roster_autocomplete);
+    g_hash_table_insert(ac_funcs, "/script", _script_autocomplete);
+    g_hash_table_insert(ac_funcs, "/sendfile", _sendfile_autocomplete);
+    g_hash_table_insert(ac_funcs, "/software", _software_autocomplete);
+    g_hash_table_insert(ac_funcs, "/status", _status_autocomplete);
+    g_hash_table_insert(ac_funcs, "/statusbar", _statusbar_autocomplete);
+    g_hash_table_insert(ac_funcs, "/strophe", _strophe_autocomplete);
+    g_hash_table_insert(ac_funcs, "/sub", _sub_autocomplete);
+    g_hash_table_insert(ac_funcs, "/subject", _subject_autocomplete);
+    g_hash_table_insert(ac_funcs, "/theme", _theme_autocomplete);
+    g_hash_table_insert(ac_funcs, "/time", _time_autocomplete);
+    g_hash_table_insert(ac_funcs, "/titlebar", _titlebar_autocomplete);
+    g_hash_table_insert(ac_funcs, "/tls", _tls_autocomplete);
+    g_hash_table_insert(ac_funcs, "/tray", _tray_autocomplete);
+    g_hash_table_insert(ac_funcs, "/url", _url_autocomplete);
+    g_hash_table_insert(ac_funcs, "/vcard", _vcard_autocomplete);
+    g_hash_table_insert(ac_funcs, "/who", _who_autocomplete);
+    g_hash_table_insert(ac_funcs, "/win", _win_autocomplete);
+    g_hash_table_insert(ac_funcs, "/wins", _wins_autocomplete);
+    g_hash_table_insert(ac_funcs, "/wintitle", _wintitle_autocomplete);
 }
 
 void
@@ -2009,86 +2083,26 @@ _cmd_ac_complete_params(ProfWin* window, const char* const input, gboolean previ
         }
     }
 
-    gchar* cmds[] = { "/prefs", "/disco", "/room", "/autoping", "/mainwin", "/inputwin" };
-    Autocomplete completers[] = { prefs_ac, disco_ac, room_ac, autoping_ac, winpos_ac, winpos_ac };
+    struct
+    {
+        gchar* cmd;
+        Autocomplete completer;
+    } ac_cmds[] = {
+        { "/prefs", prefs_ac },
+        { "/disco", disco_ac },
+        { "/room", room_ac },
+        { "/autoping", autoping_ac },
+        { "/mainwin", winpos_ac },
+        { "/inputwin", winpos_ac },
+    };
 
-    for (int i = 0; i < ARRAY_SIZE(cmds); i++) {
-        result = autocomplete_param_with_ac(input, cmds[i], completers[i], TRUE, previous);
+    for (int i = 0; i < ARRAY_SIZE(ac_cmds); i++) {
+        result = autocomplete_param_with_ac(input, ac_cmds[i].cmd, ac_cmds[i].completer, TRUE, previous);
         if (result) {
             return result;
         }
     }
 
-    GHashTable* ac_funcs = g_hash_table_new(g_str_hash, g_str_equal);
-    g_hash_table_insert(ac_funcs, "/help", _help_autocomplete);
-    g_hash_table_insert(ac_funcs, "/who", _who_autocomplete);
-    g_hash_table_insert(ac_funcs, "/sub", _sub_autocomplete);
-    g_hash_table_insert(ac_funcs, "/notify", _notify_autocomplete);
-    g_hash_table_insert(ac_funcs, "/autoaway", _autoaway_autocomplete);
-    g_hash_table_insert(ac_funcs, "/theme", _theme_autocomplete);
-    g_hash_table_insert(ac_funcs, "/log", _log_autocomplete);
-    g_hash_table_insert(ac_funcs, "/account", _account_autocomplete);
-    g_hash_table_insert(ac_funcs, "/roster", _roster_autocomplete);
-    g_hash_table_insert(ac_funcs, "/bookmark", _bookmark_autocomplete);
-    g_hash_table_insert(ac_funcs, "/autoconnect", _autoconnect_autocomplete);
-#ifdef HAVE_LIBOTR
-    g_hash_table_insert(ac_funcs, "/otr", _otr_autocomplete);
-#endif
-#ifdef HAVE_LIBGPGME
-    g_hash_table_insert(ac_funcs, "/pgp", _pgp_autocomplete);
-    g_hash_table_insert(ac_funcs, "/ox", _ox_autocomplete);
-#endif
-#ifdef HAVE_OMEMO
-    g_hash_table_insert(ac_funcs, "/omemo", _omemo_autocomplete);
-#endif
-    g_hash_table_insert(ac_funcs, "/connect", _connect_autocomplete);
-    g_hash_table_insert(ac_funcs, "/alias", _alias_autocomplete);
-    g_hash_table_insert(ac_funcs, "/join", _join_autocomplete);
-    g_hash_table_insert(ac_funcs, "/form", _form_autocomplete);
-    g_hash_table_insert(ac_funcs, "/occupants", _occupants_autocomplete);
-    g_hash_table_insert(ac_funcs, "/kick", _kick_autocomplete);
-    g_hash_table_insert(ac_funcs, "/ban", _ban_autocomplete);
-    g_hash_table_insert(ac_funcs, "/affiliation", _affiliation_autocomplete);
-    g_hash_table_insert(ac_funcs, "/role", _role_autocomplete);
-    g_hash_table_insert(ac_funcs, "/resource", _resource_autocomplete);
-    g_hash_table_insert(ac_funcs, "/wintitle", _wintitle_autocomplete);
-    g_hash_table_insert(ac_funcs, "/inpblock", _inpblock_autocomplete);
-    g_hash_table_insert(ac_funcs, "/time", _time_autocomplete);
-    g_hash_table_insert(ac_funcs, "/receipts", _receipts_autocomplete);
-    g_hash_table_insert(ac_funcs, "/reconnect", _reconnect_autocomplete);
-    g_hash_table_insert(ac_funcs, "/wins", _wins_autocomplete);
-    g_hash_table_insert(ac_funcs, "/tls", _tls_autocomplete);
-    g_hash_table_insert(ac_funcs, "/titlebar", _titlebar_autocomplete);
-    g_hash_table_insert(ac_funcs, "/script", _script_autocomplete);
-    g_hash_table_insert(ac_funcs, "/subject", _subject_autocomplete);
-    g_hash_table_insert(ac_funcs, "/console", _console_autocomplete);
-    g_hash_table_insert(ac_funcs, "/win", _win_autocomplete);
-    g_hash_table_insert(ac_funcs, "/close", _close_autocomplete);
-    g_hash_table_insert(ac_funcs, "/plugins", _plugins_autocomplete);
-    g_hash_table_insert(ac_funcs, "/sendfile", _sendfile_autocomplete);
-    g_hash_table_insert(ac_funcs, "/blocked", _blocked_autocomplete);
-    g_hash_table_insert(ac_funcs, "/tray", _tray_autocomplete);
-    g_hash_table_insert(ac_funcs, "/presence", _presence_autocomplete);
-    g_hash_table_insert(ac_funcs, "/rooms", _rooms_autocomplete);
-    g_hash_table_insert(ac_funcs, "/statusbar", _statusbar_autocomplete);
-    g_hash_table_insert(ac_funcs, "/clear", _clear_autocomplete);
-    g_hash_table_insert(ac_funcs, "/invite", _invite_autocomplete);
-    g_hash_table_insert(ac_funcs, "/status", _status_autocomplete);
-    g_hash_table_insert(ac_funcs, "/logging", _logging_autocomplete);
-    g_hash_table_insert(ac_funcs, "/color", _color_autocomplete);
-    g_hash_table_insert(ac_funcs, "/avatar", _avatar_autocomplete);
-    g_hash_table_insert(ac_funcs, "/correction", _correction_autocomplete);
-    g_hash_table_insert(ac_funcs, "/correct", _correct_autocomplete);
-    g_hash_table_insert(ac_funcs, "/software", _software_autocomplete);
-    g_hash_table_insert(ac_funcs, "/url", _url_autocomplete);
-    g_hash_table_insert(ac_funcs, "/executable", _executable_autocomplete);
-    g_hash_table_insert(ac_funcs, "/lastactivity", _lastactivity_autocomplete);
-    g_hash_table_insert(ac_funcs, "/intype", _intype_autocomplete);
-    g_hash_table_insert(ac_funcs, "/mood", _mood_autocomplete);
-    g_hash_table_insert(ac_funcs, "/strophe", _strophe_autocomplete);
-    g_hash_table_insert(ac_funcs, "/cmd", _adhoc_cmd_autocomplete);
-    g_hash_table_insert(ac_funcs, "/vcard", _vcard_autocomplete);
-
     int len = strlen(input);
     char parsed[len + 1];
     int i = 0;
@@ -2106,11 +2120,9 @@ _cmd_ac_complete_params(ProfWin* window, const char* const input, gboolean previ
     if (ac_func) {
         result = ac_func(window, input, previous);
         if (result) {
-            g_hash_table_destroy(ac_funcs);
             return result;
         }
     }
-    g_hash_table_destroy(ac_funcs);
 
     result = plugins_autocomplete(input, previous);
     if (result) {
diff --git a/src/tools/autocomplete.c b/src/tools/autocomplete.c
index 227b79e0..27532081 100644
--- a/src/tools/autocomplete.c
+++ b/src/tools/autocomplete.c
@@ -314,11 +314,8 @@ autocomplete_complete(Autocomplete ac, const gchar* search_str, gboolean quote,
 static char*
 _autocomplete_param_common(const char* const input, char* command, autocomplete_func func, Autocomplete ac, gboolean quote, gboolean previous, void* context)
 {
-    char* command_cpy;
-    char* result = NULL;
     int len;
-
-    command_cpy = g_strdup_printf("%s ", command);
+    auto_char char* command_cpy = g_strdup_printf("%s ", command);
     if (!command_cpy) {
         return NULL;
     }
@@ -327,8 +324,11 @@ _autocomplete_param_common(const char* const input, char* command, autocomplete_
 
     if (strncmp(input, command_cpy, len) == 0) {
         int inp_len = strlen(input);
-        char prefix[inp_len];
-        char* found;
+        auto_char char* found = NULL;
+        auto_char char* prefix = malloc(inp_len + 1);
+        if (!prefix) {
+            return NULL;
+        }
 
         for (int i = len; i < inp_len; i++) {
             prefix[i - len] = input[i];
@@ -343,12 +343,11 @@ _autocomplete_param_common(const char* const input, char* command, autocomplete_
         }
 
         if (found) {
-            result = g_strdup_printf("%s%s", command_cpy, found);
+            return g_strdup_printf("%s%s", command_cpy, found);
         }
     }
-    free(command_cpy);
 
-    return result;
+    return NULL;
 }
 
 char*
diff --git a/src/ui/confwin.c b/src/ui/confwin.c
index d74c6d86..85abe748 100644
--- a/src/ui/confwin.c
+++ b/src/ui/confwin.c
@@ -215,8 +215,8 @@ _confwin_form_field(ProfWin* window, char* tag, FormField* field)
         win_append(window, THEME_DEFAULT, ": ");
     }
 
-    GSList* values = field->values;
-    GSList* curr_value = values;
+    GSList* curr_value = field->values;
+    GSList* curr_option;
 
     switch (field->type_t) {
     case FIELD_HIDDEN:
@@ -272,36 +272,30 @@ _confwin_form_field(ProfWin* window, char* tag, FormField* field)
         }
         break;
     case FIELD_LIST_SINGLE:
-        if (curr_value) {
-            win_newline(window);
-            char* value = curr_value->data;
-            GSList* options = field->options;
-            GSList* curr_option = options;
-            while (curr_option) {
-                FormOption* option = curr_option->data;
-                if (g_strcmp0(option->value, value) == 0) {
-                    win_println(window, THEME_ONLINE, "-", "  [%s] %s", option->value, option->label);
-                } else {
-                    win_println(window, THEME_OFFLINE, "-", "  [%s] %s", option->value, option->label);
-                }
-                curr_option = g_slist_next(curr_option);
+        win_newline(window);
+        char* value = curr_value ? curr_value->data : NULL;
+        curr_option = field->options;
+        while (curr_option) {
+            FormOption* option = curr_option->data;
+            if (g_strcmp0(option->value, value) == 0) {
+                win_println(window, THEME_ONLINE, "-", "  [%s] %s", option->value, option->label);
+            } else {
+                win_println(window, THEME_OFFLINE, "-", "  [%s] %s", option->value, option->label);
             }
+            curr_option = g_slist_next(curr_option);
         }
         break;
     case FIELD_LIST_MULTI:
-        if (curr_value) {
-            win_newline(window);
-            GSList* options = field->options;
-            GSList* curr_option = options;
-            while (curr_option) {
-                FormOption* option = curr_option->data;
-                if (g_slist_find_custom(curr_value, option->value, (GCompareFunc)g_strcmp0)) {
-                    win_println(window, THEME_ONLINE, "-", "  [%s] %s", option->value, option->label);
-                } else {
-                    win_println(window, THEME_OFFLINE, "-", "  [%s] %s", option->value, option->label);
-                }
-                curr_option = g_slist_next(curr_option);
+        win_newline(window);
+        curr_option = field->options;
+        while (curr_option) {
+            FormOption* option = curr_option->data;
+            if (g_slist_find_custom(curr_value, option->value, (GCompareFunc)g_strcmp0)) {
+                win_println(window, THEME_ONLINE, "-", "  [%s] %s", option->value, option->label);
+            } else {
+                win_println(window, THEME_OFFLINE, "-", "  [%s] %s", option->value, option->label);
             }
+            curr_option = g_slist_next(curr_option);
         }
         break;
     case FIELD_JID_SINGLE: