diff --git a/lib/util.js b/lib/util.js
index 40ed38ca..1d27d92b 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -861,15 +861,16 @@
          * @param pFileName
          * @return Ext
          */
-        this.getExtension               = function(pFileName) {
-            var lRet, lDot;
+        this.getExtension               = function(name) {
+            var ret, dot,
+                isStr = Util.isString(name);
             
-            if ( Util.isString(pFileName) ) {
-                lDot = pFileName.lastIndexOf('.');
-                lRet = pFileName.substr(lDot);
+            if (isStr) {
+                dot = name.lastIndexOf('.');
+                ret = name.substr(dot);
             }
             
-            return lRet;
+            return ret;
         };
         
        /**