diff --git a/src/ui/mucwin.c b/src/ui/mucwin.c
index 238db218..f4e104ca 100644
--- a/src/ui/mucwin.c
+++ b/src/ui/mucwin.c
@@ -497,14 +497,12 @@ mucwin_subject(ProfMucWin *mucwin, const char *const nick, const char *const sub
 }
 
 void
-mucwin_kick_error(const char *const roomjid, const char *const nick, const char *const error)
+mucwin_kick_error(ProfMucWin *mucwin, const char *const nick, const char *const error)
 {
-    ProfWin *window = (ProfWin*)wins_get_muc(roomjid);
-    if (window == NULL) {
-        log_error("Kick error received for %s, but no window open for %s.", nick, roomjid);
-    } else {
-        win_vprint(window, '!', 0, NULL, 0, THEME_ERROR, "", "Error kicking %s: %s", nick, error);
-    }
+    assert(mucwin != NULL);
+
+    ProfWin *window = (ProfWin*)mucwin;
+    win_vprint(window, '!', 0, NULL, 0, THEME_ERROR, "", "Error kicking %s: %s", nick, error);
 }
 
 void
diff --git a/src/ui/ui.h b/src/ui/ui.h
index 3ce0fea7..5cfa3c8e 100644
--- a/src/ui/ui.h
+++ b/src/ui/ui.h
@@ -206,7 +206,7 @@ void mucwin_role_set_error(const char *const roomjid, const char *const nick, co
     const char *const error);
 void mucwin_role_list_error(const char *const roomjid, const char *const role, const char *const error);
 void mucwin_handle_role_list(const char *const roomjid, const char *const role, GSList *nicks);
-void mucwin_kick_error(const char *const roomjid, const char *const nick, const char *const error);
+void mucwin_kick_error(ProfMucWin *mucwin, const char *const nick, const char *const error);
 
 // xml console
 void xmlwin_show(ProfXMLWin *xmlwin, const char *const msg);
diff --git a/src/xmpp/iq.c b/src/xmpp/iq.c
index 6029fe2b..e8b41235 100644
--- a/src/xmpp/iq.c
+++ b/src/xmpp/iq.c
@@ -1462,12 +1462,11 @@ _room_kick_result_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
     }
 
     // handle error responses
-    if (g_strcmp0(type, STANZA_TYPE_ERROR) == 0) {
+    ProfMucWin *mucwin = wins_get_muc(from);
+    if (mucwin && (g_strcmp0(type, STANZA_TYPE_ERROR) == 0)) {
         char *error_message = stanza_get_error_message(stanza);
-        mucwin_kick_error(from, nick, error_message);
+        mucwin_kick_error(mucwin, nick, error_message);
         free(error_message);
-        free(nick);
-        return 0;
     }
 
     free(nick);
diff --git a/tests/unittests/ui/stub_ui.c b/tests/unittests/ui/stub_ui.c
index 35ecc824..25f353b5 100644
--- a/tests/unittests/ui/stub_ui.c
+++ b/tests/unittests/ui/stub_ui.c
@@ -281,7 +281,7 @@ void mucwin_role_set_error(const char * const roomjid, const char * const nick,
     const char * const error) {}
 void mucwin_role_list_error(const char * const roomjid, const char * const role, const char * const error) {}
 void mucwin_handle_role_list(const char * const roomjid, const char * const role, GSList *nicks) {}
-void mucwin_kick_error(const char * const roomjid, const char * const nick, const char * const error) {}
+void mucwin_kick_error(ProfMucWin *mucwin, const char * const nick, const char * const error) {}
 void ui_show_form(ProfMucConfWin *confwin) {}
 void ui_show_form_field(ProfWin *window, DataForm *form, char *tag) {}
 void ui_show_form_help(ProfMucConfWin *confwin) {}