diff --git a/test/unit/issue_test.rb b/test/unit/issue_test.rb
index 9bd5b018b..0fa880809 100644
--- a/test/unit/issue_test.rb
+++ b/test/unit/issue_test.rb
@@ -1525,7 +1525,7 @@ class IssueTest < ActiveSupport::TestCase
     child = Issue.new(:parent_issue_id => issue2.id, :start_date => '2012-10-16',
       :project_id => 1, :tracker_id => 1, :status_id => 1, :subject => 'Child', :author_id => 1)
     assert !child.valid?
-    assert_include 'cannot be earlier than 10/18/2012 because of preceding issues', child.errors.full_messages
+    assert_include 'Start date cannot be earlier than 10/18/2012 because of preceding issues', child.errors.full_messages
     assert_equal Date.parse('2012-10-18'), child.soonest_start
     child.start_date = '2012-10-18'
     assert child.save