diff --git a/synapse/config/registration.py b/synapse/config/registration.py
index 5df321b28..7480ed514 100644
--- a/synapse/config/registration.py
+++ b/synapse/config/registration.py
@@ -15,11 +15,10 @@
 
 from distutils.util import strtobool
 
+from synapse.config._base import Config, ConfigError
 from synapse.types import RoomAlias
 from synapse.util.stringutils import random_string_with_symbols
 
-from synapse.config._base import Config, ConfigError
-
 
 class RegistrationConfig(Config):