diff --git a/addons/website/static/src/components/wysiwyg_adapter/wysiwyg_adapter.js b/addons/website/static/src/components/wysiwyg_adapter/wysiwyg_adapter.js
index e4119517629..088c5430e1c 100644
--- a/addons/website/static/src/components/wysiwyg_adapter/wysiwyg_adapter.js
+++ b/addons/website/static/src/components/wysiwyg_adapter/wysiwyg_adapter.js
@@ -59,7 +59,7 @@ export class WysiwygAdapterComponent extends Wysiwyg {
         wysiwygReady: { type: Function },
         editableElements: { type: true, optional: true },
         savableSelector: { type: String, optional: true },
-        beforeEditorActive: { type: Boolean, optional: true },
+        beforeEditorActive: { type: Function, optional: true },
         removeWelcomeMessage: { type: Function },
     }
     /**