diff --git a/sway/desktop/xdg_shell.c b/sway/desktop/xdg_shell.c
index c2a985ee..7c01bf16 100644
--- a/sway/desktop/xdg_shell.c
+++ b/sway/desktop/xdg_shell.c
@@ -294,8 +294,11 @@ static void handle_commit(struct wl_listener *listener, void *data) {
 		memcpy(&view->geometry, &new_geo, sizeof(struct wlr_box));
 		if (container_is_floating(view->container)) {
 			view_update_size(view);
-			wlr_xdg_toplevel_set_size(view->wlr_xdg_toplevel, view->geometry.width,
-				view->geometry.height);
+			// Only set the toplevel size the current container actually has a size.
+			if (view->container->current.width) {
+				wlr_xdg_toplevel_set_size(view->wlr_xdg_toplevel, view->geometry.width,
+					view->geometry.height);
+			}
 			transaction_commit_dirty_client();
 		} else {
 			view_center_surface(view);