diff --git a/src/lib/dom-api.html b/src/lib/dom-api.html
index c5401d5fc8..15bbbde5d1 100644
--- a/src/lib/dom-api.html
+++ b/src/lib/dom-api.html
@@ -927,8 +927,10 @@
       // is populated.
       if (!node._lightChildren) {
         var c$ = [];
-        for (var a=node.firstChild; a = a && a.nextSibling;) {
-          c$.push(a);
+        var n = node.firstChild;
+        while (n) {
+          c$.push(n);
+          n = n.nextSibling;
         }
         for (var i=0, l=c$.length, child; (i<l) && (child=c$[i]); i++) {
           child._lightParent = child._lightParent || node;