diff --git a/lib/bcoin/block.js b/lib/bcoin/block.js
index c0858b1c..29a3bfcc 100644
--- a/lib/bcoin/block.js
+++ b/lib/bcoin/block.js
@@ -62,7 +62,7 @@ function Block(data, subtype) {
     if (this.version >= 2) {
       tx = this.txs[0];
       if (tx && tx.inputs[0] && +tx.inputs[0].out.hash === 0) {
-        var height = bcoin.script.coinbaseHeight(tx.inputs[0].script);
+        height = bcoin.script.coinbaseHeight(tx.inputs[0].script);
         if (height > 0)
           this._height = height;
       }