1 files changed, 1 insertions, 1 deletions
diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index 84e74693aa..3411c3d701 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -267,7 +267,7 @@ class TestModule < Test::Unit::TestCase
     ].each do |name, msg|
       expected = "wrong constant name %s" % name
       msg = "#{msg}#{': ' if msg}wrong constant name #{name.dump}"
-      assert_raise_with_message(NameError, expected, "#{msg} to #{m}") do
+      assert_raise_with_message(NameError, Regexp.compile(Regexp.quote(expected)), "#{msg} to #{m}") do
         yield name
       end
     end