diff --git a/core/lib/eth_signer/src/g_kms_signer.rs b/core/lib/eth_signer/src/g_kms_signer.rs
index a91f15910..8aa54e8be 100644
--- a/core/lib/eth_signer/src/g_kms_signer.rs
+++ b/core/lib/eth_signer/src/g_kms_signer.rs
@@ -119,7 +119,14 @@ impl EthereumSigner for GKMSSigner {
             .await
             .map_err(|e| SignerError::SigningFailed(e.to_string()))?;
 
-        let adjusted_v = signature.v + raw_tx.chain_id * 2 + 35; // eip155
+        let _adjust_v_value = matches!(tx.transaction_type.map(|t| t.as_u64()), Some(0) | None);
+
+        let mut adjusted_v = 0;
+        if _adjust_v_value {
+            adjusted_v = signature.v + raw_tx.chain_id * 2 + 35; // eip155
+        } else {
+            adjusted_v = signature.v;
+        }
         let r_h256 = H256::from_slice(signature.r.as_byte_slice());
         let s_h256 = H256::from_slice(signature.s.as_byte_slice());