diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java
index 543c965c804..68adb2ab69c 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java
@@ -466,7 +466,7 @@ protected ValidationResult<RpcErrorType> validateBlobs(
       // blob transactions must have at least one blob
       if (versionedHashes.isEmpty()) {
         return ValidationResult.invalid(
-            RpcErrorType.INVALID_PARAMS, "There must be at least one blob");
+            RpcErrorType.INVALID_BLOB_COUNT, "There must be at least one blob");
       }
       transactionVersionedHashes.addAll(versionedHashes.get());
     }
@@ -505,7 +505,7 @@ protected ValidationResult<RpcErrorType> validateBlobs(
     if (protocolSpec.getGasCalculator().blobGasCost(transactionVersionedHashes.size())
         > protocolSpec.getGasLimitCalculator().currentBlobGasLimit()) {
       return ValidationResult.invalid(
-          RpcErrorType.INVALID_PARAMS,
+          RpcErrorType.INVALID_BLOB_COUNT,
           String.format("Invalid Blob Count: %d", transactionVersionedHashes.size()));
     }
     return ValidationResult.valid();