diff --git a/test/unit/document_category_test.rb b/test/unit/document_category_test.rb
index 8b814432c7..3237e96fd5 100644
--- a/test/unit/document_category_test.rb
+++ b/test/unit/document_category_test.rb
@@ -18,7 +18,7 @@
 require File.dirname(__FILE__) + '/../test_helper'
 
 class DocumentCategoryTest < ActiveSupport::TestCase
-  fixtures :enumerations, :documents
+  fixtures :enumerations, :documents, :issues
 
   def test_should_be_an_enumeration
     assert DocumentCategory.ancestors.include?(Enumeration)