diff --git a/src/config/preferences.c b/src/config/preferences.c
index 64b8bed8..8307fe2c 100644
--- a/src/config/preferences.c
+++ b/src/config/preferences.c
@@ -251,7 +251,7 @@ prefs_reload(void)
 }
 
 void
-prefs_load(char* config_file)
+prefs_load(const char* config_file)
 {
     if (config_file == NULL) {
         prefs_loc = files_get_config_path(FILE_PROFRC);
diff --git a/src/config/preferences.h b/src/config/preferences.h
index 22d6184e..3ff6a591 100644
--- a/src/config/preferences.h
+++ b/src/config/preferences.h
@@ -205,14 +205,11 @@ typedef struct prof_winplacement_t
     int inputwin_pos;
 } ProfWinPlacement;
 
-void prefs_load(char* config_file);
+void prefs_load(const char* config_file);
 void prefs_save(void);
 void prefs_close(void);
 void prefs_reload(void);
 
-char* prefs_find_login(char* prefix);
-void prefs_reset_login_search(void);
-
 gchar* prefs_autocomplete_boolean_choice(const char* const prefix, gboolean previous, void* context);
 void prefs_reset_boolean_choice(void);
 
@@ -359,6 +356,4 @@ gboolean prefs_get_room_notify(const char* const roomjid);
 gboolean prefs_get_room_notify_mention(const char* const roomjid);
 gboolean prefs_get_room_notify_trigger(const char* const roomjid);
 
-gchar* prefs_get_inputrc(void);
-
 #endif