diff --git a/lib/javascript-static.js b/lib/javascript-static.js
index f6f9561e655..2d6476ae49f 100644
--- a/lib/javascript-static.js
+++ b/lib/javascript-static.js
@@ -924,7 +924,7 @@ function filterByParent(elCollection, parentFinder) {
     var filteredCollection = [];
     for (var i = 0; i < elCollection.length; ++i) {
         var findParent = parentFinder(elCollection[i]);
-        if (findParent.nodeName.toUpperCase != 'BODY') {
+        if (findParent.nodeName.toUpperCase() != 'BODY') {
             filteredCollection.push(elCollection[i]);
         }
     }