diff --git a/kitty/boss.py b/kitty/boss.py
index aed550a3c..146f153ac 100644
--- a/kitty/boss.py
+++ b/kitty/boss.py
@@ -3740,3 +3740,4 @@ class Boss:
     def copy_or_noop(self) -> bool | None:
         if w := self.active_window:
             return w.copy_or_noop()
+        return None