diff --git a/src/vnet/bfd/bfd_main.c b/src/vnet/bfd/bfd_main.c
index 3ed9c03..530b297 100644
--- a/src/vnet/bfd/bfd_main.c
+++ b/src/vnet/bfd/bfd_main.c
@@ -1634,6 +1634,11 @@
   op.len = sizeof (*with_sha1);
   op.digest = calculated_hash;
   vnet_crypto_process_ops (vm, &op, 1);
+
+  /* Restore the modified data within the packet */
+  clib_memcpy (with_sha1->sha1_auth.hash, hash_from_packet,
+	       sizeof (with_sha1->sha1_auth.hash));
+
   if (0 ==
       memcmp (calculated_hash, hash_from_packet, sizeof (calculated_hash)))
     {