diff --git a/src/state/disconnect-toast-mixin.ts b/src/state/disconnect-toast-mixin.ts
index 69d076ecc4..a6a8dfa540 100644
--- a/src/state/disconnect-toast-mixin.ts
+++ b/src/state/disconnect-toast-mixin.ts
@@ -22,6 +22,7 @@ export default <T extends Constructor<HassBaseEl>>(superClass: T) =>
       const oldHass = changedProperties.get("hass");
       if (
         !changedProperties.has("hass") ||
+        !this.hass!.config ||
         oldHass?.config?.state === this.hass!.config.state
       ) {
         return;