diff --git a/lib/chrome.js b/lib/chrome.js
index 85a42dd..992db34 100644
--- a/lib/chrome.js
+++ b/lib/chrome.js
@@ -1251,8 +1251,8 @@ var ChromeObject = function() {
         return this;
     };
 
-    this.setPublisherName = function(publisherName) {
-        publisherName.set(publisherName.toLowerCase());
+    this.setPublisherName = function(_publisherName) {
+        publisherName.set(_publisherName.toLowerCase());
 
         switch (publisherName.get()) {
             case "msedge":