diff --git a/bottle.py b/bottle.py
index 23fff762c..71b22286e 100755
--- a/bottle.py
+++ b/bottle.py
@@ -2525,9 +2525,7 @@ def _delete_virtual(self, key):
             overlay._delete_virtual(key)
 
     def _on_change(self, key, value):
-        for cb in self._change_listener:
-            if cb(self, key, value):
-                return True
+        return any(cb(self, key, value) for cb in self._change_listener)
 
     def _add_change_listener(self, func):
         self._change_listener.append(func)