diff --git a/plugins/trezor/client.py b/plugins/trezor/client.py
index 90710781f049..89b5c2927961 100644
--- a/plugins/trezor/client.py
+++ b/plugins/trezor/client.py
@@ -3,8 +3,8 @@
 
 class TrezorClient(TrezorClientBase, ProtocolMixin, BaseClient):
     def __init__(self, transport, handler, plugin):
-        BaseClient.__init__(self, transport)
-        ProtocolMixin.__init__(self, transport)
+        BaseClient.__init__(self, transport=transport)
+        ProtocolMixin.__init__(self, transport=transport)
         TrezorClientBase.__init__(self, handler, plugin, proto)