diff --git a/CmdWindow.py b/CmdWindow.py
index afb35a4..46ea3fd 100644
--- a/CmdWindow.py
+++ b/CmdWindow.py
@@ -56,6 +56,7 @@ class CmdWindow:
     def activate_event(self, widget, data=None):
         if not self.handle_activated(self.entry.get_text(), self):
             self.window.destroy()
+        self.entry.set_text('')
 
     def getElapsed(self):
         if self.starttime is None: