diff --git a/packages/ui-default/components/monaco/loader.ts b/packages/ui-default/components/monaco/loader.ts
index 17a3a3fd..a29ca7f0 100644
--- a/packages/ui-default/components/monaco/loader.ts
+++ b/packages/ui-default/components/monaco/loader.ts
@@ -85,7 +85,7 @@ export async function load(features = ['markdown']) {
   }
   await res.loadThemePromise;
   resolve();
-  return { monaco: res.default, registerAction: res.registerAction, customOptions: {} };
+  return { monaco: res.default, registerAction: res.registerAction, customOptions: res.customOptions };
 }
 
 export default load;