diff --git a/tests/test_http_request.py b/tests/test_http_request.py
index feea54a54..81c1a4a9e 100644
--- a/tests/test_http_request.py
+++ b/tests/test_http_request.py
@@ -274,12 +274,13 @@ class FormRequestTest(RequestTest):
         r1 = self.request_class("http://www.example.com", formdata={})
         self.assertEqual(r1.body, b'')
         
-    def test_formdata_overrides_querystring_duplicates(self):
+    def test_formdata_overrides_querystring(self):
         data = (('a', 'one'), ('a', 'two'), ('b', '2'))
         url = self.request_class('http://www.example.com/?a=0&b=1&c=3#fragment', method='GET', formdata=data).url.split('#')[0]
         fs = _qs(self.request_class(url, method='GET', formdata=data))
         self.assertEqual(set(fs[b'a']), {b'one', b'two'})
         self.assertEqual(fs[b'b'], [b'2'])
+        self.assertNone(fs[b'c'])
 
         data = {'a' : '1', 'b' : '2'}
         fs = _qs(self.request_class('http://www.example.com/', method='GET', formdata=data))