diff --git a/Block.js b/Block.js
index 05f9b690c..47c0a6bea 100644
--- a/Block.js
+++ b/Block.js
@@ -67,7 +67,6 @@ Block.prototype.parse = function parse(parser, headerOnly) {
   for (var i = 0; i < txCount; i++) {
     var tx = new Transaction();
     tx.parse(parser);
-    tx.calcHash();
     this.txs.push(tx);
   }
 };