diff --git a/dsmr_parser/clients/protocol.py b/dsmr_parser/clients/protocol.py
index 68f2434..0834051 100644
--- a/dsmr_parser/clients/protocol.py
+++ b/dsmr_parser/clients/protocol.py
@@ -8,7 +8,7 @@ from serial_asyncio import create_serial_connection
 
 from dsmr_parser import telegram_specifications
 from dsmr_parser.clients.telegram_buffer import TelegramBuffer
-from dsmr_parser.exceptions import ParseError
+from dsmr_parser.exceptions import ParseError, InvalidChecksumError
 from dsmr_parser.parsers import TelegramParser
 from dsmr_parser.clients.settings import SERIAL_SETTINGS_V2_2, \
     SERIAL_SETTINGS_V4
diff --git a/dsmr_parser/clients/serial_.py b/dsmr_parser/clients/serial_.py
index ddc0a14..1d7be89 100644
--- a/dsmr_parser/clients/serial_.py
+++ b/dsmr_parser/clients/serial_.py
@@ -4,7 +4,7 @@ import serial
 import serial_asyncio
 
 from dsmr_parser.clients.telegram_buffer import TelegramBuffer
-from dsmr_parser.exceptions import ParseError
+from dsmr_parser.exceptions import ParseError, InvalidChecksumError
 from dsmr_parser.parsers import TelegramParser