diff --git a/tests/device_handler.py b/tests/device_handler.py
index 016aedb8fb..c060a405e9 100644
--- a/tests/device_handler.py
+++ b/tests/device_handler.py
@@ -7,7 +7,6 @@ import typing_extensions as tx
 
 from trezorlib.client import PASSPHRASE_ON_DEVICE
 from trezorlib.transport import udp
-from trezorlib.transport.session import Session
 
 if t.TYPE_CHECKING:
     from trezorlib._internal.emulator import Emulator