diff --git a/app/controllers/api/v1/invitades_controller.rb b/app/controllers/api/v1/invitades_controller.rb
index 360bb975..2951b20a 100644
--- a/app/controllers/api/v1/invitades_controller.rb
+++ b/app/controllers/api/v1/invitades_controller.rb
@@ -19,7 +19,7 @@ module Api
 
         set_cookie if contact
 
-        render file: rails.root.join('public', '1x1.png'),
+        render file: Rails.root.join('public', '1x1.png'),
                content_type: 'image/png',
                layout: false
       end
@@ -35,7 +35,7 @@ module Api
 
         set_cookie if anon
 
-        render file: rails.root.join('public', '1x1.png'),
+        render file: Rails.root.join('public', '1x1.png'),
                content_type: 'image/png',
                layout: false
       end