diff --git a/app/models/project.rb b/app/models/project.rb
index 1e74ae735ba..758ef14703c 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -330,7 +330,7 @@ class Project < ActiveRecord::Base
   end
 
   def ci_service
-    @ci_service ||= services.select(&:activated?).first
+    @ci_service ||= ci_services.select(&:activated?).first
   end
 
   # For compatibility with old code