diff --git a/acceptance-tests/tests/src/acceptanceTest/resources/jsonrpc/engine/paris/test-cases/08_unknown_payload.json b/acceptance-tests/tests/src/acceptanceTest/resources/jsonrpc/engine/paris/test-cases/08_unknown_payload.json
index 21ccd28c154..de7eb865dea 100644
--- a/acceptance-tests/tests/src/acceptanceTest/resources/jsonrpc/engine/paris/test-cases/08_unknown_payload.json
+++ b/acceptance-tests/tests/src/acceptanceTest/resources/jsonrpc/engine/paris/test-cases/08_unknown_payload.json
@@ -11,8 +11,8 @@
     "jsonrpc": "2.0",
     "id": 67,
     "error": {
-      "code": -32001,
-      "message": "Payload does not exist / is not available"
+      "code": -38001,
+      "message": "Unknown payload"
     }
   },
   "statusCode": 200
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 d2ddb483da8..58ba18e336a 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
@@ -186,7 +186,7 @@ public enum RpcErrorType implements RpcMethodError {
   EXECUTION_HALTED(-32000, "Transaction processing could not be completed due to an exception"),
 
   // Execution engine failures
-  UNKNOWN_PAYLOAD(-32001, "Payload does not exist / is not available"),
+  UNKNOWN_PAYLOAD(-38001, "Unknown payload"),
   INVALID_TERMINAL_BLOCK(-32002, "Terminal block doesn't satisfy terminal block conditions"),
   INVALID_FORKCHOICE_STATE(-38002, "Invalid forkchoice state"),
   INVALID_PAYLOAD_ATTRIBUTES(-38003, "Invalid payload attributes"),