diff --git a/test/ruby/test_keyword.rb b/test/ruby/test_keyword.rb
index 66f9cc8dbb..45ecc6a95e 100644
--- a/test/ruby/test_keyword.rb
+++ b/test/ruby/test_keyword.rb
@@ -246,7 +246,7 @@ class TestKeywordArguments < Test::Unit::TestCase
   end
 
   def m1(*args)
-    yield *args
+    yield(*args)
   end
 
   def test_block