diff --git a/docs/features/search/how-to-guides.md b/docs/features/search/how-to-guides.md
index ac36d64673..0a5f53d2f2 100644
--- a/docs/features/search/how-to-guides.md
+++ b/docs/features/search/how-to-guides.md
@@ -219,7 +219,7 @@ export class YourCollatorFactory implements DocumentCollatorFactory {
       };
     }
   }
-  getCollator() {
+  async getCollator() {
     return Readable.from(this.execute());
   }
 }