diff --git a/core/src/trezor/wire/thp/received_message_handler.py b/core/src/trezor/wire/thp/received_message_handler.py
index 6403315568..13633e15f9 100644
--- a/core/src/trezor/wire/thp/received_message_handler.py
+++ b/core/src/trezor/wire/thp/received_message_handler.py
@@ -31,11 +31,11 @@ from . import (
     PacketHeader,
     SessionState,
     ThpDecryptionError,
+    ThpDeviceLockedError,
     ThpError,
     ThpErrorType,
     ThpInvalidDataError,
     ThpUnallocatedSessionError,
-    ThpDeviceLockedError,
 )
 from . import alternating_bit_protocol as ABP
 from . import (