diff --git a/synapse/rest/client/v2_alpha/devices.py b/synapse/rest/client/v2_alpha/devices.py
index 2560da141..fd9516a60 100644
--- a/synapse/rest/client/v2_alpha/devices.py
+++ b/synapse/rest/client/v2_alpha/devices.py
@@ -45,6 +45,7 @@ class DevicesRestServlet(servlet.RestServlet):
         )
         defer.returnValue((200, {"devices": devices}))
 
+
 class DeleteDevicesRestServlet(servlet.RestServlet):
     PATTERNS = client_v2_patterns("/delete_devices", releases=[], v2_alpha=False)
 
@@ -92,6 +93,7 @@ class DeleteDevicesRestServlet(servlet.RestServlet):
             )
         defer.returnValue((200, {}))
 
+
 class DeviceRestServlet(servlet.RestServlet):
     PATTERNS = client_v2_patterns("/devices/(?P<device_id>[^/]*)$",
                                   releases=[], v2_alpha=False)