diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py
index 401dd5c..3f644fb 100644
--- a/Lib/test/test_urllib.py
+++ b/Lib/test/test_urllib.py
@@ -407,6 +407,7 @@
         result = urllib.quote(partial_quote)
         self.assertEqual(expected, result,
                          "using quote(): %s != %s" % (expected, result))
+        result = urllib.quote_plus(partial_quote)
         self.assertEqual(expected, result,
                          "using quote_plus(): %s != %s" % (expected, result))
         self.assertRaises(TypeError, urllib.quote, None)