diff --git a/client/lib/wp/sync-handler/index.js b/client/lib/wp/sync-handler/index.js
index b07e761..0f67c4e 100644
--- a/client/lib/wp/sync-handler/index.js
+++ b/client/lib/wp/sync-handler/index.js
@@ -54,8 +54,8 @@ export class SyncHandler {
 			window.syncHandler = this;
 		}

-		this.reqHandler = handler;
-		return this.syncHandlerWrapper( handler );
+		this.reqHandler = handler.default || handler;
+		return this.syncHandlerWrapper( handler.default || handler );
 	}

 	syncHandlerWrapper( handler ) {