diff --git a/autobahn/asyncio/rawsocket.py b/autobahn/asyncio/rawsocket.py
index 4831fadb..507884e8 100644
--- a/autobahn/asyncio/rawsocket.py
+++ b/autobahn/asyncio/rawsocket.py
@@ -205,6 +205,7 @@ class RawSocketProtocol(PrefixProtocol):
                 if data:
                     PrefixProtocol.data_received(self, data)
 
+
 ERR_SERIALIZER_UNSUPPORTED = 1
 
 ERRMAP = {
diff --git a/autobahn/asyncio/test/test_asyncio_rawsocket.py b/autobahn/asyncio/test/test_asyncio_rawsocket.py
index 1cde465f..d8f05cea 100644
--- a/autobahn/asyncio/test/test_asyncio_rawsocket.py
+++ b/autobahn/asyncio/test/test_asyncio_rawsocket.py
@@ -215,6 +215,7 @@ class Test(TestCase):
         self.assertTrue(server.onMessage.called)
         self.assertTrue(isinstance(server.onMessage.call_args[0][0], message.Abort))
 
+
 if __name__ == "__main__":
     # import sys;sys.argv = ['', 'Test.test_prefix']
     main()