diff --git a/dwl.c b/dwl.c
index 10d5a5b..4d19357 100644
--- a/dwl.c
+++ b/dwl.c
@@ -731,7 +731,7 @@ commitnotify(struct wl_listener *listener, void *data)
 {
 	Client *c = wl_container_of(listener, c, commit);
 
-	if (client_surface(c)->mapped)
+	if (client_surface(c)->mapped && c->mon)
 		resize(c, c->geom, (c->isfloating && !c->isfullscreen));
 
 	/* mark a pending resize as completed */