diff --git a/specs/eip4844/beacon-chain.md b/specs/eip4844/beacon-chain.md
index 4cf953593..2fe721a7c 100644
--- a/specs/eip4844/beacon-chain.md
+++ b/specs/eip4844/beacon-chain.md
@@ -167,10 +167,10 @@ See [the full details of `blob_versioned_hashes` offset calculation](https://gis
 def tx_peek_blob_versioned_hashes(opaque_tx: Transaction) -> Sequence[VersionedHash]:
     assert opaque_tx[0] == BLOB_TX_TYPE
     message_offset = 1 + uint32.decode_bytes(opaque_tx[1:5])
-    # field offset: 32 + 8 + 32 + 32 + 8 + 4 + 32 + 4 + 4 = 156
+    # field offset: 32 + 8 + 32 + 32 + 8 + 4 + 32 + 4 + 4 + 32 = 188
     blob_versioned_hashes_offset = (
         message_offset
-        + uint32.decode_bytes(opaque_tx[(message_offset + 156):(message_offset + 160)])
+        + uint32.decode_bytes(opaque_tx[(message_offset + 188):(message_offset + 192)])
     )
     return [
         VersionedHash(opaque_tx[x:(x + 32)])