diff --git a/packages/editor/src/core/extensions/callout/extension-config.ts b/packages/editor/src/core/extensions/callout/extension-config.ts
index 91ee9c684cc..cc6a7caa43c 100644
--- a/packages/editor/src/core/extensions/callout/extension-config.ts
+++ b/packages/editor/src/core/extensions/callout/extension-config.ts
@@ -63,6 +63,6 @@ export const CustomCalloutExtensionConfig = Node.create({
 
   // Render HTML for the callout node
   renderHTML({ HTMLAttributes }) {
-    return ["callout-component", mergeAttributes(HTMLAttributes)];
+    return ["callout-component", mergeAttributes(HTMLAttributes), 0];
   },
 });