diff --git a/docs/docs/systems/overlays/overview.md b/docs/docs/systems/overlays/overview.md
index 7ef2cfd27..8e3bb0c86 100644
--- a/docs/docs/systems/overlays/overview.md
+++ b/docs/docs/systems/overlays/overview.md
@@ -69,13 +69,13 @@ const ctrl = new OverlayController({
 Or creating your own Web Component which uses the Overlay System
 
 ```js
-import { LitElement } from '@lion/core';
+import { LitElement, html } from '@lion/core';
 import { OverlayMixin, withModalDialogConfig } from '@lion/overlays';
 
 class MyOverlayComponent extends OverlayMixin(LitElement) {
   _defineOverlayConfig() {
     return {
-      ...withModalDialogConfig,
+      ...withModalDialogConfig(),
     };
   }