diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java
index d3274de6255..825dde2dbd3 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java
@@ -148,7 +148,7 @@ public enum RpcErrorType implements RpcMethodError {
   // Transaction validation failures
   NONCE_TOO_LOW(-32001, "Nonce too low"),
   INVALID_TRANSACTION_SIGNATURE(-32002, "Invalid signature"),
-  INVALID_TRANSACTION_TYPE(-32602, "Invalid transaction type"),
+  INVALID_TRANSACTION_TYPE(INVALID_PARAMS_ERROR_CODE, "Invalid transaction type"),
   INTRINSIC_GAS_EXCEEDS_LIMIT(-32003, "Intrinsic gas exceeds gas limit"),
   TRANSACTION_UPFRONT_COST_EXCEEDS_BALANCE(-32004, "Upfront cost exceeds account balance"),
   EXCEEDS_BLOCK_GAS_LIMIT(-32005, "Transaction gas limit exceeds block gas limit"),