diff --git a/kitty/tabs.py b/kitty/tabs.py
index b64cca587..8bf1c69db 100644
--- a/kitty/tabs.py
+++ b/kitty/tabs.py
@@ -11,7 +11,7 @@
 from contextlib import suppress
 from functools import wraps
 from gettext import gettext as _
-from typing import Any, Concatenate, Deque, NamedTuple, Optional, ParamSpec, TypeVar
+from typing import Any, Concatenate, Deque, NamedTuple, Optional, ParamSpec, TypeVar, cast
 
 from .borders import Border, Borders
 from .child import Child
@@ -69,7 +69,7 @@ def wrapper(self: 'TabManager', *args: P.args, **kwargs: P.kwargs) -> T:
                 if not self.tab_bar_hidden:
                     self.layout_tab_bar()
                     self.resize(only_tabs=True)
-    return wrapper
+    return cast(Callable[Concatenate['TabManager', P], T], wrapper)
 
 
 class TabMouseEvent(NamedTuple):