diff --git a/lib/bcoin/mempool.js b/lib/bcoin/mempool.js
index 982f435b..6e40018d 100644
--- a/lib/bcoin/mempool.js
+++ b/lib/bcoin/mempool.js
@@ -691,13 +691,6 @@ Mempool.prototype.addTX = function addTX(tx, callback, force) {
   }
 
   if (this.requireStandard) {
-    if (!tx.isStandard(ret)) {
-      return callback(new VerifyError(tx,
-        'nonstandard',
-        ret.reason,
-        ret.score));
-    }
-
     if (!this.chain.csvActive && tx.version >= 2) {
       return callback(new VerifyError(tx,
         'nonstandard',
@@ -715,6 +708,15 @@ Mempool.prototype.addTX = function addTX(tx, callback, force) {
     }
   }
 
+  if (this.requireStandard) {
+    if (!tx.isStandard(ret)) {
+      return callback(new VerifyError(tx,
+        'nonstandard',
+        ret.reason,
+        ret.score));
+    }
+  }
+
   this.chain.checkFinal(this.chain.tip, tx, lockFlags, function(err, isFinal) {
     if (err)
       return callback(err);