diff --git a/packages/frontend/core/src/components/page-detail-editor.tsx b/packages/frontend/core/src/components/page-detail-editor.tsx
index 6fb824b7c8..cbdbc067f0 100644
--- a/packages/frontend/core/src/components/page-detail-editor.tsx
+++ b/packages/frontend/core/src/components/page-detail-editor.tsx
@@ -88,6 +88,7 @@ const PageDetailEditorMain = memo(function PageDetailEditorMain({
       if (onLoad) {
         // Invoke onLoad once the editor has been mounted to the DOM.
         editor.updateComplete
+          .then(() => editor.host.updateComplete)
           .then(() => {
             disposableGroup.add(onLoad(page, editor));
           })