diff --git a/app/services/milestones/base_service.rb b/app/services/milestones/base_service.rb
index 4963601ea8b..cce0863d611 100644
--- a/app/services/milestones/base_service.rb
+++ b/app/services/milestones/base_service.rb
@@ -5,6 +5,7 @@ module Milestones
 
     def initialize(parent, user, params = {})
       @parent, @current_user, @params = parent, user, params.dup
+      super
     end
   end
 end