diff --git a/tests/test_connection.py b/tests/test_connection.py
index 9143571f..43943ed9 100644
--- a/tests/test_connection.py
+++ b/tests/test_connection.py
@@ -296,6 +296,15 @@ class ConnectionTest(unittest.TestCase):
         conn = get_connection('t2')
         self.assertFalse(get_tz_awareness(conn))
 
+    def test_write_concern(self):
+        """Ensure write concern can be specified in connect() via
+        a kwarg or as part of the connection URI.
+        """
+        conn1 = connect(alias='conn1', host='mongodb://localhost/testing?w=1&j=true')
+        conn2 = connect('testing', alias='conn2', w=1, j=True)
+        self.assertEqual(conn1.write_concern.document, {'j': True, 'w': 1})
+        self.assertEqual(conn2.write_concern.document, {'j': True, 'w': 1})
+
     def test_datetime(self):
         connect('mongoenginetest', tz_aware=True)
         d = datetime.datetime(2010, 5, 5, tzinfo=utc)