diff --git a/src/pretix/base/secretgenerators/pretix_sig1_pb2.py b/src/pretix/base/secretgenerators/pretix_sig1_pb2.py
index 414a8bbe2..4194b1fdd 100644
--- a/src/pretix/base/secretgenerators/pretix_sig1_pb2.py
+++ b/src/pretix/base/secretgenerators/pretix_sig1_pb2.py
@@ -24,10 +24,12 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: pretix_sig1.proto
 """Generated protocol buffer code."""
+from google.protobuf import (
+    descriptor as _descriptor, descriptor_pool as _descriptor_pool,
+    symbol_database as _symbol_database,
+)
 from google.protobuf.internal import builder as _builder
-from google.protobuf import descriptor as _descriptor
-from google.protobuf import descriptor_pool as _descriptor_pool
-from google.protobuf import symbol_database as _symbol_database
+
 # @@protoc_insertion_point(imports)
 
 _sym_db = _symbol_database.Default()