diff --git a/src/Users/UsersRpcHandler.php b/src/Users/UsersRpcHandler.php
index d074f53..abc0279 100644
--- a/src/Users/UsersRpcHandler.php
+++ b/src/Users/UsersRpcHandler.php
@@ -66,7 +66,7 @@ final class UsersRpcHandler implements RpcHandler {
         if(!empty($userInfo->title))
             $output['title'] = $userInfo->title;
 
-        $output['created_at'] = $userInfo->getCreatedAt()->toIso8601ZuluString();
+        $output['created_at'] = $userInfo->createdAt->toIso8601ZuluString();
         if($userInfo->lastActiveTime !== null)
             $output['last_active_at'] = $userInfo->lastActiveAt->toIso8601ZuluString();