diff --git a/tests/test_wm.py b/tests/test_wm.py
index 7b8f99f7..e131427c 100644
--- a/tests/test_wm.py
+++ b/tests/test_wm.py
@@ -665,7 +665,7 @@ def test_mouse_resize(
 
             wait_idle()
 
-            if shell_dbus_interface.ShellVersion[0] != 43:
+            if gdk_backend != GdkBackend.X11 and shell_dbus_interface.ShellVersion[0] != 43:
                 assert extension_test_hook.WindowRect == expected_rect2
 
         finally: