diff --git a/app/controllers/session_controller.rb b/app/controllers/session_controller.rb
index 09fb287bcc4..6b2a8baa1fe 100644
--- a/app/controllers/session_controller.rb
+++ b/app/controllers/session_controller.rb
@@ -72,7 +72,7 @@ class SessionController < ApplicationController
 
         if SiteSetting.must_approve_users? && !user.approved?
           if SiteSetting.sso_not_approved_url.present?
-            redirect_to sso_not_approved_url
+            redirect_to SiteSetting.sso_not_approved_url
           else
             render text: I18n.t("sso.account_not_approved"), status: 403
           end