diff --git a/lib/redmine_dmsf.rb b/lib/redmine_dmsf.rb
index a82f0fef..6c9250fa 100644
--- a/lib/redmine_dmsf.rb
+++ b/lib/redmine_dmsf.rb
@@ -41,7 +41,8 @@ require File.dirname(__FILE__) + '/redmine_dmsf/patches/queries_controller_patch
 
 # redmine_resources depends on redmine_contact and redmine_contacts is alphabetically sorted before redmine_dmsf
 # in the plugin list.
-if Redmine::Plugin.installed?(:redmine_contacts) && !Redmine::Plugin.installed?(:easy_extensions)
+if (Redmine::Plugin.installed?(:redmine_contacts) || Redmine::Plugin.installed?(:redmine_questions)) &&
+  !Redmine::Plugin.installed?(:easy_extensions)
   require File.dirname(__FILE__) + '/redmine_dmsf/patches/notifiable_ru_patch'
 else
   require File.dirname(__FILE__) + '/redmine_dmsf/patches/notifiable_patch'