diff --git a/pysollib/game/__init__.py b/pysollib/game/__init__.py
index fec8cb51b..4e2e7c166 100644
--- a/pysollib/game/__init__.py
+++ b/pysollib/game/__init__.py
@@ -2631,6 +2631,7 @@ def stopDemo(self, event=None):
         self.canvas.setTopImage(None)
         self.demo_logo = None
         self.demo = None
+        self.busy = False
         self.updateMenus()
 
     # demo event - play one demo move and check for win/loss