diff --git a/app/services/users/update_account_service.rb b/app/services/users/update_account_service.rb
index 7163b7623..d73c9c907 100644
--- a/app/services/users/update_account_service.rb
+++ b/app/services/users/update_account_service.rb
@@ -52,7 +52,7 @@ class Users::UpdateAccountService < ApplicationService
     if first_full_reward
       RewardGradeService.call(user, container_id: user.id, container_type: 'Account', score: 500)
 
-      sms_notify_admin if extension.teacher?
+      sms_notify_admin if user.user_extension.teacher?
     end
 
     user