diff --git a/app/models/project.rb b/app/models/project.rb
index a6b1ee48..46509d11 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -129,7 +129,7 @@ class Project < ActiveRecord::Base
     if perm = Redmine::AccessControl.permission(permission)
       unless perm.project_module.nil?
         # If the permission belongs to a project module, make sure the module is enabled
-        base_statement << " AND EXISTS (SELECT em.id FROM #{EnabledModule.table_name} em WHERE em.name='#{perm.project_module}' AND em.project_id=#{Project.table_name}.id)"
+        base_statement << " AND #{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name='#{perm.project_module}')"
       end
     end
     if options[:project]