diff --git a/src/core/operations/XORChecksum.mjs b/src/core/operations/XORChecksum.mjs
index 2cb46105..be154802 100644
--- a/src/core/operations/XORChecksum.mjs
+++ b/src/core/operations/XORChecksum.mjs
@@ -7,7 +7,7 @@
 import Operation from "../Operation.mjs";
 import Utils from "../Utils.mjs";
 import { toHex } from "../lib/Hex.mjs";
-import OperationError from "../errors/OperationError.mjs"; // 1. Added import
+import OperationError from "../errors/OperationError.mjs"; // 1. Added import for error message 
 
 /**
  * XOR Checksum operation