diff --git a/Multi-Period-Daily/User.bot.js b/Multi-Period-Daily/User.bot.js
index 3afe0c7ea..bfee3276b 100644
--- a/Multi-Period-Daily/User.bot.js
+++ b/Multi-Period-Daily/User.bot.js
@@ -274,7 +274,7 @@ Read the candles and volumes from Exchange Raw Data and produce a file for each
                         outputCandles = [];
                         outputVolumes = [];
 
-                        for (n = 0; n < global.dailyFilePeriods.length; n++) {
+                        for (let n = 0; n < global.dailyFilePeriods.length; n++) {
 
                             const emptyArray1 = [];
                             const emptyArray2 = [];
@@ -589,7 +589,7 @@ Read the candles and volumes from Exchange Raw Data and produce a file for each
                         let fileRecordCounter = 0;
                         let fileContent = "";
 
-                        for (i = 0; i < candles.length; i++) {
+                        for (let i = 0; i < candles.length; i++) {
 
                             let candle = candles[i];
 
@@ -640,7 +640,7 @@ Read the candles and volumes from Exchange Raw Data and produce a file for each
                         let fileRecordCounter = 0;
                         let fileContent = "";
 
-                        for (i = 0; i < volumes.length; i++) {
+                        for (let i = 0; i < volumes.length; i++) {
 
                             let candle = volumes[i];
 
diff --git a/Multi-Period-Market/User.bot.js b/Multi-Period-Market/User.bot.js
index 1b1055a6a..31d6e930f 100644
--- a/Multi-Period-Market/User.bot.js
+++ b/Multi-Period-Market/User.bot.js
@@ -392,7 +392,7 @@
                     let outputCandles = [];
                     let outputVolumes = [];
 
-                    for (n = 0; n < global.marketFilesPeriods.length; n++) {
+                    for (let n = 0; n < global.marketFilesPeriods.length; n++) {
 
                         const emptyArray1 = [];
                         const emptyArray2 = [];
@@ -799,7 +799,7 @@
                         let fileRecordCounter = 0;
                         let fileContent = "";
 
-                        for (i = 0; i < candles.length; i++) {
+                        for (let i = 0; i < candles.length; i++) {
 
                             let candle = candles[i];
 
@@ -849,7 +849,7 @@
                         let fileRecordCounter = 0;
                         let fileContent = "";
 
-                        for (i = 0; i < volumes.length; i++) {
+                        for (let i = 0; i < volumes.length; i++) {
 
                             let candle = volumes[i];