diff --git a/tests/test_http_request.py b/tests/test_http_request.py
index 2da1cdf6d..0c2f95262 100644
--- a/tests/test_http_request.py
+++ b/tests/test_http_request.py
@@ -289,10 +289,10 @@ class FormRequestTest(RequestTest):
         self.assertEqual(fs[b'a'], [b'1'])
         self.assertEqual(fs[b'b'], [b'2'])
 
-        #GET duplicates are preserved
-        formdata=(('foo', 'bar'), ('foo', 'baz'))
+        #Duplicate GET arguments are preserved
+        formdata={'foo' : 'bar'}
         fs = _qs(self.request_class('http://example.com/?foo=1&foo=2&a=1&a=2', method='GET', formdata=data))
-        self.assertEqual(set(fs[b'foo']), {b'bar', b'baz'})
+        self.assertEqual(fs[b'foo'], [b'bar'])
         self.assertEqual(set(fs[b'a']), {b'1', b'2'})
 
     def test_default_encoding_bytes(self):