diff --git a/src/event/server_events.c b/src/event/server_events.c
index 37db7cec..bfac6ddd 100644
--- a/src/event/server_events.c
+++ b/src/event/server_events.c
@@ -521,7 +521,10 @@ sv_ev_roster_update(const char *const barejid, const char *const name,
 void
 sv_ev_xmpp_stanza(const char *const msg)
 {
-    xmlwin_show(msg);
+    ProfXMLWin *xmlwin = wins_get_xmlconsole();
+    if (xmlwin) {
+        xmlwin_show(xmlwin, msg);
+    }
 }
 
 void
diff --git a/src/ui/ui.h b/src/ui/ui.h
index 6520358a..52389a11 100644
--- a/src/ui/ui.h
+++ b/src/ui/ui.h
@@ -209,7 +209,7 @@ void chatwin_otr_smp_event(ProfChatWin *chatwin, prof_otr_smp_event_t event, voi
 #endif
 
 // xml console
-void xmlwin_show(const char *const msg);
+void xmlwin_show(ProfXMLWin *xmlwin, const char *const msg);
 
 // Input window
 char* inp_readline(void);
diff --git a/src/ui/xmlwin.c b/src/ui/xmlwin.c
index d793fd05..31921390 100644
--- a/src/ui/xmlwin.c
+++ b/src/ui/xmlwin.c
@@ -32,16 +32,15 @@
  *
  */
 
+#include <assert.h>
+
 #include "ui/win_types.h"
 #include "window_list.h"
 
 void
-xmlwin_show(const char *const msg)
+xmlwin_show(ProfXMLWin *xmlwin, const char *const msg)
 {
-    ProfXMLWin *xmlwin = wins_get_xmlconsole();
-    if (!xmlwin) {
-        return;
-    }
+    assert(xmlwin != NULL);
 
     ProfWin *window = (ProfWin*)xmlwin;
     if (g_str_has_prefix(msg, "SENT:")) {
diff --git a/tests/unittests/ui/stub_ui.c b/tests/unittests/ui/stub_ui.c
index 03142652..d146341a 100644
--- a/tests/unittests/ui/stub_ui.c
+++ b/tests/unittests/ui/stub_ui.c
@@ -165,7 +165,7 @@ char *ui_get_line(void)
     return NULL;
 }
 
-void xmlwin_show(const char * const msg) {}
+void xmlwin_show(ProfXMLWin *xmlwin, const char * const msg) {}
 
 // ui events
 void ui_contact_online(char *barejid, Resource *resource, GDateTime *last_activity)