diff --git a/synapse/app/federation_reader.py b/synapse/app/federation_reader.py
index 99e8a4cf6a..2c99ce8c64 100644
--- a/synapse/app/federation_reader.py
+++ b/synapse/app/federation_reader.py
@@ -92,7 +92,10 @@ class FederationReaderServer(HomeServer):
                     # is not specified since federation resource includes openid
                     # resource.
                     resources.update({
-                        FEDERATION_PREFIX: TransportLayerServer(self, servlet_groups=["openid"]),
+                        FEDERATION_PREFIX: TransportLayerServer(
+                            self,
+                            servlet_groups=["openid"],
+                        ),
                     })
 
         root_resource = create_resource_tree(resources, NoResource())
diff --git a/synapse/config/server.py b/synapse/config/server.py
index eebbfccafe..4eefd06f4a 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -330,7 +330,7 @@ class ServerConfig(Config):
 
               - names: [federation]  # Federation APIs
                 compress: false
-                
+
               # # If federation is disabled synapse can still expose the open ID endpoint
               # # to allow integrations to authenticate users
               # - names: [openid]
diff --git a/tests/app/test_openid_listener.py b/tests/app/test_openid_listener.py
index 46a3b61a3c..590abc1e92 100644
--- a/tests/app/test_openid_listener.py
+++ b/tests/app/test_openid_listener.py
@@ -61,7 +61,10 @@ class FederationReaderOpenIDListenerTests(HomeserverTestCase):
                 return
             raise
 
-        request, channel = self.make_request("GET", "/_matrix/federation/v1/openid/userinfo")
+        request, channel = self.make_request(
+            "GET",
+            "/_matrix/federation/v1/openid/userinfo",
+        )
         self.render(request)
 
         self.assertEqual(channel.code, 401)
@@ -107,7 +110,10 @@ class SynapseHomeserverOpenIDListenerTests(HomeserverTestCase):
                 return
             raise
 
-        request, channel = self.make_request("GET", "/_matrix/federation/v1/openid/userinfo")
+        request, channel = self.make_request(
+            "GET",
+            "/_matrix/federation/v1/openid/userinfo",
+        )
         self.render(request)
 
         self.assertEqual(channel.code, 401)