diff --git a/requirements-dev.txt b/requirements-dev.txt
index de46db5..f3d187f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-.
+-e .
 flake8
 pytest
 coverage
diff --git a/tests/test_cookies_identity.py b/tests/test_cookies_identity.py
index 6845760..e72c052 100644
--- a/tests/test_cookies_identity.py
+++ b/tests/test_cookies_identity.py
@@ -49,7 +49,7 @@ class TestCookiesIdentity(unittest.TestCase):
 
         port = self.find_unused_port()
         self.handler = app.make_handler(
-            debug=True, keep_alive_on=False)
+            debug=False, keep_alive_on=False)
         srv = yield from self.loop.create_server(
             self.handler, '127.0.0.1', port)
         url = "http://127.0.0.1:{}".format(port)
diff --git a/tests/test_dict_autz.py b/tests/test_dict_autz.py
index 6c689ca..f37cacc 100644
--- a/tests/test_dict_autz.py
+++ b/tests/test_dict_autz.py
@@ -55,7 +55,7 @@ class TestCookiesIdentity(unittest.TestCase):
 
         port = self.find_unused_port()
         self.handler = app.make_handler(
-            debug=True, keep_alive_on=False)
+            debug=False, keep_alive_on=False)
         srv = yield from self.loop.create_server(
             self.handler, '127.0.0.1', port)
         url = "http://127.0.0.1:{}".format(port)