diff --git a/autovpn/test/test_vpn_app.py b/autovpn/test/test_vpn_app.py
index 4549fd20054ef0b5a48a2d5cc531351d6c9bb4e6..0fefdec656f7298277e6630da3c478ffb4374682 100644
--- a/autovpn/test/test_vpn_app.py
+++ b/autovpn/test/test_vpn_app.py
@@ -26,6 +26,7 @@ class VpnAppTest(unittest.TestCase):
 ''',
             'AUTH_ENABLE': True,
             'AUTH_FUNCTION': lambda x, y: (x and y and x == y),
+            'TLS_AUTH_KEY': self.tmpdir + '/tlsauth.key',
             }
 
         self.app = vpn_app.make_app(self.config)
@@ -57,11 +58,13 @@ class VpnAppTest(unittest.TestCase):
             self.assertTrue('Authentication failed' in rv.data)
 
     def test_cert_dl(self):
+        cn = 'testcn1234'
+        t = self.app.signer.encode(cn)
         with self.app.test_client() as c:
             with c.session_transaction() as sess:
                 sess['dl_ok'] = True
                 sess['_csrf'] = 'csrf'
                 sess['logged_in'] = True
-            rv = c.get('/newcertdl?_csrf=csrf')
+            rv = c.get('/newcertdl?_csrf=csrf&t=' + t)
             self.assertEquals('200 OK', rv.status)
             self.assertEquals('application/zip', rv.content_type)