diff --git a/Furious/Widget/Application.py b/Furious/Widget/Application.py
index 5d4706a..4e04a18 100644
--- a/Furious/Widget/Application.py
+++ b/Furious/Widget/Application.py
@@ -261,9 +261,8 @@ class Application(SingletonApplication):
         Proxy.off()
         Proxy.daemonOff()
 
-        # Avoid calling core exit callback. Cores are cleaned by OS.
-        # if self.tray is not None:
-        #     self.tray.ConnectAction.stopCore()
+        if self.tray is not None:
+            self.tray.ConnectAction.stopCore()
 
         NeedSyncSettings.syncAll()