diff --git a/test/geocoder_test.rb b/test/geocoder_test.rb
index a75232f1a534f2d721ae41f710c085cb0de77c68..9c54766f982ac157fbb471f45bdcc12116446cb6 100644
--- a/test/geocoder_test.rb
+++ b/test/geocoder_test.rb
@@ -154,7 +154,7 @@ class GeocoderTest < Test::Unit::TestCase
   def test_yahoo_result_components
     Geocoder::Configuration.lookup = :yahoo
     result = Geocoder.search("Madison Square Garden, New York, NY")
-    assert_equal "10001", result.postal
+    assert_equal "10001", result.postal_code
   end
 
   def test_yahoo_address_formatting