diff --git a/lib/bcoin/block.js b/lib/bcoin/block.js
index dec40e1e..5157dbb5 100644
--- a/lib/bcoin/block.js
+++ b/lib/bcoin/block.js
@@ -353,18 +353,19 @@ Block.prototype.__defineGetter__('commitmentHash', function() {
   if (!coinbase)
     return;
 
-  for (i = 0; i < coinbase.outputs.length; i++) {
+  for (i = coinbase.outputs.length - 1; i >= 0; i--) {
     commitment = coinbase.outputs[i].script;
     if (commitment.isCommitment()) {
       commitmentHash = commitment.getCommitmentHash();
       commitmentHash = commitmentHash.toString('hex');
+
+      if (!this.mutable)
+        this._commitmentHash = commitmentHash;
+
       break;
     }
   }
 
-  if (!this.mutable)
-    this._commitmentHash = commitmentHash;
-
   return commitmentHash;
 });