diff --git a/src/lib/elementary/efl_ui_win.c b/src/lib/elementary/efl_ui_win.c
index df7094af13..29dce4dabb 100644
--- a/src/lib/elementary/efl_ui_win.c
+++ b/src/lib/elementary/efl_ui_win.c
@@ -8735,6 +8735,7 @@ elm_win_socket_listen(Efl_Ui_Win *obj, const char *svcname, int svcnum, Eina_Boo
 EAPI Eina_Bool
 elm_win_focus_get(const Efl_Ui_Win *obj)
 {
+   EINA_SAFETY_ON_FALSE_RETURN_VAL(efl_isa(obj, MY_CLASS), EINA_FALSE);
    return efl_ui_focus_object_focus_get(obj);
 }