Index: uspace/lib/wndmgt/src/wndmgt_srv.c
===================================================================
--- uspace/lib/wndmgt/src/wndmgt_srv.c	(revision 3c54869a5b618845c19d4f6200ee90ac99a446aa)
+++ uspace/lib/wndmgt/src/wndmgt_srv.c	(revision ffed09d79c4f737ed0a49581161c8c053ce34980)
@@ -229,5 +229,5 @@
 	wnd_id = ipc_get_arg1(icall);
 
-	if (srv->ops->activate_window == NULL) {
+	if (srv->ops->close_window == NULL) {
 		async_answer_0(icall, ENOTSUP);
 		return;