diff --git a/tests/unittests/ui/stub_ui.c b/tests/unittests/ui/stub_ui.c
index 5e0ac484..e232fab0 100644
--- a/tests/unittests/ui/stub_ui.c
+++ b/tests/unittests/ui/stub_ui.c
@@ -66,11 +66,13 @@ GSList* ui_get_chat_recipients(void)
 
 void ui_switch_win(ProfWin *win) {}
 
+#ifdef HAVE_LIBOTR
 void chatwin_otr_secured(ProfChatWin *chatwin, gboolean trusted) {}
 void chatwin_otr_unsecured(ProfChatWin *chatwin) {}
 void chatwin_otr_trust(ProfChatWin *chatwin) {}
 void chatwin_otr_untrust(ProfChatWin *chatwin) {}
 void chatwin_otr_smp_event(ProfChatWin *chatwin, prof_otr_smp_event_t event, void *data) {}
+#endif
 
 void ui_sigwinch_handler(int sig) {}