diff --git a/modules/gui/minimal_macosx/voutagl.m b/modules/gui/minimal_macosx/voutagl.m
index 710176ac49a7063c16244d0bf72731f59ec62b43..80425c2bd606099e48d2a6177ca2f31e507dae75 100644
--- a/modules/gui/minimal_macosx/voutagl.m
+++ b/modules/gui/minimal_macosx/voutagl.m
@@ -233,7 +233,8 @@ int aglManage( vout_thread_t * p_vout )
             aglSetViewport(p_vout, viewBounds, clipBounds);
 
             /* Most Carbon APIs are not thread-safe, therefore delagate some GUI visibilty update to the main thread */
-            sendEventToMainThread(GetWindowEventTarget(p_vout->p_sys->theWindow), kEventClassVLCPlugin, kEventVLCPluginHideFullscreen);
+            if( p_vout->p_sys->theWindow )
+                sendEventToMainThread(GetWindowEventTarget(p_vout->p_sys->theWindow), kEventClassVLCPlugin, kEventVLCPluginHideFullscreen);
         }
         else
         {