diff --git a/src/panels/lovelace/create-element/create-element-base.ts b/src/panels/lovelace/create-element/create-element-base.ts
index f409f6a3b6..1e9c09cf59 100644
--- a/src/panels/lovelace/create-element/create-element-base.ts
+++ b/src/panels/lovelace/create-element/create-element-base.ts
@@ -52,9 +52,10 @@ export const createErrorCardElement = (config: ErrorCardConfig) => {
     el.setConfig(config);
   } else {
     import("../cards/hui-error-card");
-    customElements
-      .whenDefined("hui-error-card")
-      .then(() => el.setConfig(config));
+    customElements.whenDefined("hui-error-card").then(() => {
+      customElements.upgrade(el);
+      el.setConfig(config);
+    });
   }
   return el;
 };