diff --git a/client/src/ledger_app_clients/ethereum/client.py b/client/src/ledger_app_clients/ethereum/client.py
index d90aaaa8f..302e3604c 100644
--- a/client/src/ledger_app_clients/ethereum/client.py
+++ b/client/src/ledger_app_clients/ethereum/client.py
@@ -1,3 +1,4 @@
+# from binascii import crc32
 import rlp
 from enum import IntEnum
 from ragger.backend import BackendInterface
@@ -46,6 +47,7 @@ class NetworkInfoTag(IntEnum):
     NETWORK_TICKER = 0x13
     NETWORK_ICON = 0x14
     SIGNATURE = 0x21
+    CRC32 = 0x22
 
 
 class PKIPubKeyUsage(IntEnum):
@@ -438,6 +440,7 @@ def _prepare_network_info(self,
             payload += icon
         payload += format_tlv(NetworkInfoTag.SIGNATURE,
                               sign_data(Key.DOMAIN_NAME, payload))
+        # payload += format_tlv(NetworkInfoTag.CRC32, crc32(payload).to_bytes(4, 'big'))
         return payload
 
     def provide_network_information(self,