diff --git a/app/controllers/jwt_controller.rb b/app/controllers/jwt_controller.rb
index 0edf084e9e4..f5aa5397ff1 100644
--- a/app/controllers/jwt_controller.rb
+++ b/app/controllers/jwt_controller.rb
@@ -9,7 +9,7 @@ class JwtController < ApplicationController
 
   def auth
     service = SERVICES[params[:service]]
-    head :not_found unless service
+    return head :not_found unless service
 
     result = service.new(@project, @user, auth_params).execute