diff --git a/src/lib/dom-tree-api.html b/src/lib/dom-tree-api.html
index be6df6db..fb18d4fc 100644
--- a/src/lib/dom-tree-api.html
+++ b/src/lib/dom-tree-api.html
@@ -117,7 +117,7 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
 
     getLastElementChild: function(node) {
       return node.__dom && node.__dom.lastChild ? 
-        this._getLastElementChild(node) : node.firstElementChild;
+        this._getLastElementChild(node) : node.lastElementChild;
     },
 
     _getLastElementChild: function(node) {
@@ -285,4 +285,4 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
   };
 
 })();
-</script>
\ No newline at end of file
+</script>