diff --git a/src/panels/lovelace/editor/config-elements/hui-area-card-editor.ts b/src/panels/lovelace/editor/config-elements/hui-area-card-editor.ts
index f46f279b45..dc9eb19d73 100644
--- a/src/panels/lovelace/editor/config-elements/hui-area-card-editor.ts
+++ b/src/panels/lovelace/editor/config-elements/hui-area-card-editor.ts
@@ -130,7 +130,7 @@ export class HuiAreaCardEditor
         !e.entity_category &&
         !e.hidden &&
         (e.area_id === area ||
-          (e.device_id && this.hass!.devices[e.device_id].area_id === area))
+          (e.device_id && this.hass!.devices[e.device_id]?.area_id === area))
     );
 
     const classes = entities