diff --git a/tests/unittests/test_cmd_otr.c b/tests/unittests/test_cmd_otr.c
index ca55f5b8..f18ca814 100644
--- a/tests/unittests/test_cmd_otr.c
+++ b/tests/unittests/test_cmd_otr.c
@@ -418,6 +418,7 @@ cmd_otr_start_sends_otr_query_message_to_current_recipeint(void **state)
     ProfWin window;
     window.type = WIN_CHAT;
     window.layout = NULL;
+    window.urls_ac = NULL;
     ProfChatWin chatwin;
     chatwin.window = window;
     chatwin.barejid = recipient;