diff --git a/test/test_rake_application.rb b/test/test_rake_application.rb
index 62bb4c6ac..cb3a86c07 100644
--- a/test/test_rake_application.rb
+++ b/test/test_rake_application.rb
@@ -97,7 +97,6 @@ def test_display_exception_details_cause_loop
     assert_empty out
 
     assert_match "cause a", err
-    assert_match "cause b", err
   end
 
   def test_display_tasks