diff --git a/package.json b/package.json
index c5464e0..e83a1f6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@antv/hierarchy",
-  "version": "0.6.5",
+  "version": "0.6.6",
   "description": "layout algorithms for visualizing hierarchical data",
   "main": "build/hierarchy.js",
   "browser": "build/hierarchy.js",
diff --git a/src/layout/hierarchy.js b/src/layout/hierarchy.js
index 4507c78..0a2536d 100644
--- a/src/layout/hierarchy.js
+++ b/src/layout/hierarchy.js
@@ -82,7 +82,7 @@ util.assign(Node.prototype, {
     let current;
     while (current = nodes.shift()) {
       callback(current);
-      nodes = nodes.concat(current.children);
+      nodes = current.children.concat(nodes);
     }
   },
 
diff --git a/src/layout/indented.js b/src/layout/indented.js
index 4bf7ee6..71b7486 100644
--- a/src/layout/indented.js
+++ b/src/layout/indented.js
@@ -1,7 +1,7 @@
 function positionNode(node, previousNode, dx, dropCap) {
   if (!dropCap) {
     try {
-      if (node.id === node.parent.children[node.parent.children.length - 1].id) {
+      if (node.id === node.parent.children[0].id) {
         node.x += dx * node.depth;
         node.y = previousNode ? previousNode.y : 0;
         return;