1 files changed, 1 insertions, 2 deletions
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 92f293cad5..31234ed00b 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -441,12 +441,11 @@ class TestRefinement < Test::Unit::TestCase
 
   def test_refine_without_block
     c1 = Class.new
-    e = assert_raise(ArgumentError) {
+    assert_raise_with_message(ArgumentError, "no block given") {
       Module.new do
         refine c1
       end
     }
-    assert_equal("no block given", e.message)
   end
 
   module Inspect