diff --git a/lib/primitives/tx.js b/lib/primitives/tx.js
index 114239b0..1bd05047 100644
--- a/lib/primitives/tx.js
+++ b/lib/primitives/tx.js
@@ -2521,7 +2521,7 @@ TX.prototype.fromExtended = function fromExtended(data, saveCoins) {
 
   this.ps = p.readU32();
 
-  if (p.readU8() == 1)
+  if (p.readU8() === 1)
     this.block = p.readHash('hex');
 
   this.height = p.readU32();