diff --git a/lib/net/pool.js b/lib/net/pool.js
index 05f4f225..de2a06ec 100644
--- a/lib/net/pool.js
+++ b/lib/net/pool.js
@@ -1563,8 +1563,8 @@ Pool.prototype._handleHeaders = co(function* handleHeaders(peer, packet) {
 
   for (i = 0; i < headers.length; i++) {
     header = headers[i];
-    hash = header.hash('hex');
     last = this.headerChain.tail;
+    hash = header.hash('hex');
     height = last.height + 1;
 
     if (header.prevBlock !== last.hash) {
@@ -1580,7 +1580,7 @@ Pool.prototype._handleHeaders = co(function* handleHeaders(peer, packet) {
       return;
     }
 
-    node = new BlockNode(hash, last.height + 1);
+    node = new BlockNode(hash, height);
 
     if (!this.headerNext)
       this.headerNext = node;