diff --git a/wlcs_anvil/src/lib.rs b/wlcs_anvil/src/lib.rs
index 93d79db..e1075ca 100644
--- a/wlcs_anvil/src/lib.rs
+++ b/wlcs_anvil/src/lib.rs
@@ -30,7 +30,7 @@ static SUPPORTED_EXTENSIONS: &[WlcsExtensionDescriptor] = extension_list!(
     ("wl_shell", 1),
     ("wl_seat", 5),
     ("wl_output", 3),
-    ("xdg_wm_base", 1),
+    ("xdg_wm_base", 3),
 );
 
 static DESCRIPTOR: WlcsIntegrationDescriptor = WlcsIntegrationDescriptor {