diff --git a/test/test_mpw.rb b/test/test_mpw.rb
index d2de795..c4748f6 100644
--- a/test/test_mpw.rb
+++ b/test/test_mpw.rb
@@ -123,17 +123,17 @@ class TestMPW < Test::Unit::TestCase
 		@mpw.read_data
 
 		@mpw.add_key('test2@example.com')
-		assert_equal(2, @mpw.keys.length)
+		assert_equal(2, @mpw.list_keys.length)
 
 		@mpw.write_data
 	end
 
 	def test_07_delete_gpg_key
 		@mpw.read_data
-		assert_equal(2, @mpw.keys.length)
+		assert_equal(2, @mpw.list_keys.length)
 
 		@mpw.delete_key('test2@example.com')
-		assert_equal(1, @mpw.keys.length)
+		assert_equal(1, @mpw.list_keys.length)
 
 		@mpw.write_data
 	end