diff --git a/dwl.c b/dwl.c
index 60b74ae..3dba2bf 100644
--- a/dwl.c
+++ b/dwl.c
@@ -2100,8 +2100,14 @@ requestmonstate(struct wl_listener *listener, void *data)
 void
 resize(Client *c, struct wlr_box geo, int interact)
 {
-	struct wlr_box *bbox = interact ? &sgeom : &c->mon->w;
+	struct wlr_box *bbox;
 	struct wlr_box clip;
+
+	if (!c->mon)
+		return;
+
+	bbox = interact ? &sgeom : &c->mon->w;
+
 	client_set_bounds(c, geo.width, geo.height);
 	c->geom = geo;
 	applybounds(c, bbox);