diff --git a/src/panels/lovelace/hui-view.js b/src/panels/lovelace/hui-view.js
index a815adef68..fc4d7ca69a 100644
--- a/src/panels/lovelace/hui-view.js
+++ b/src/panels/lovelace/hui-view.js
@@ -122,7 +122,7 @@ class HUIView extends PolymerElement {
       root.removeChild(root.lastChild);
     }
 
-    if (!config) {
+    if (!config || !config.cards || !Array.isArray(config.cards)) {
       this._cards = [];
       return;
     }