diff --git a/kitty/cocoa_window.m b/kitty/cocoa_window.m
index 45c239762..a0cd7a12c 100644
--- a/kitty/cocoa_window.m
+++ b/kitty/cocoa_window.m
@@ -143,7 +143,6 @@ cocoa_update_title(PyObject *pytitle) {
     [title_menu setSubmenu:m];
     [m release];
     [title release];
-    Py_RETURN_NONE;
 }
 
 PyObject*