diff --git a/piboard.py b/piboard.py
index 5589a57..159b878 100755
--- a/piboard.py
+++ b/piboard.py
@@ -122,6 +122,7 @@ class PaintWindow(wx.Window):
             
     def button_exit_handle(self, event):
         self.Destroy()
+        wx.App.ExitMainLoop(app)
 
     def button_clear_handle(self, event):
         self.button_exit.Destroy()