diff --git a/test/simple_oauth_test.rb b/test/simple_oauth_test.rb
index a0bd9be..7d43ec3 100644
--- a/test/simple_oauth_test.rb
+++ b/test/simple_oauth_test.rb
@@ -72,7 +72,7 @@ class SimpleOAuthTest < Test::Unit::TestCase
     assert_equal "OAuth #{header.send(:normalized_attributes)}", header.to_s
   end
 
-  def test_valid
+  def test_valid?
     # When given consumer and token secrets, those secrets must be passed into
     # the parsed header validation in order for the validity check to pass.
     secrets = {:consumer_secret => 'CONSUMER_SECRET', :token_secret => 'TOKEN_SECRET'}