diff --git a/test/ruby/test_iseq.rb b/test/ruby/test_iseq.rb
index 9bfd81e21f..cac159085a 100644
--- a/test/ruby/test_iseq.rb
+++ b/test/ruby/test_iseq.rb
@@ -256,7 +256,7 @@ class TestISeq < Test::Unit::TestCase
       f.puts "end"
       f.close
       path = f.path
-      assert_in_out_err(%W[- #{path}], "#{<<-"begin;"}\n#{<<-"end;"}", /unexpected end/, [], success: true)
+      assert_in_out_err(%W[- #{path}], "#{<<-"begin;"}\n#{<<-"end;"}", /unexpected `end'/, [], success: true)
       begin;
         path = ARGV[0]
         begin