diff --git a/lib/NToken.js b/lib/NToken.js
index a5e95c9f..111bec0c 100644
--- a/lib/NToken.js
+++ b/lib/NToken.js
@@ -15,7 +15,7 @@ class NToken {
     let transformations = this.getTransformationData(this.raw_code);
 
     // Identifies the necessary transformation functions and emulates them accordingly.
-    transformations = transformations.map((el, i) => {
+    transformations = transformations.map((el) => {
       if (el != null && typeof el != 'number') {
         const is_reverse_base64 = el.includes('case 65:');
         if (el.includes('function(d){for(var')) {