diff --git a/lib/file_transfer_agent/encrypt_util.js b/lib/file_transfer_agent/encrypt_util.js
index c26544221..62bb12029 100644
--- a/lib/file_transfer_agent/encrypt_util.js
+++ b/lib/file_transfer_agent/encrypt_util.js
@@ -149,8 +149,8 @@ function EncryptUtil(encrypt, filestream, temp) {
   };
 
   this.encryptDataCBC = function (encryptionMaterial, data) {
-    const decodedKey = Buffer.from(encryptionMaterial[QUERY_STAGE_MASTER_KEY], BASE64);
-    const keySize = decodedKey.length;
+    const decodedKek = Buffer.from(encryptionMaterial[QUERY_STAGE_MASTER_KEY], BASE64);
+    const keySize = decodedKek.length;
 
     const dataIv = getSecureRandom(AES_CBC.ivSize);
     const fileKey = getSecureRandom(keySize);
@@ -158,7 +158,7 @@ function EncryptUtil(encrypt, filestream, temp) {
     const dataCipher = crypto.createCipheriv(AES_CBC.cipherName(keySize), fileKey, dataIv);
     const encryptedData = performCrypto(dataCipher, data);
 
-    const keyCipher = crypto.createCipheriv(AES_ECB.cipherName(keySize), decodedKey, null);
+    const keyCipher = crypto.createCipheriv(AES_ECB.cipherName(keySize), decodedKek, null);
     const encryptedKey = performCrypto(keyCipher, fileKey);
 
     return {