diff --git a/lib/bcoin/bip70/x509.js b/lib/bcoin/bip70/x509.js
index 629bc568..38081e68 100644
--- a/lib/bcoin/bip70/x509.js
+++ b/lib/bcoin/bip70/x509.js
@@ -215,7 +215,7 @@ x509.verifyChain = function verifyChain(chain, ignoreTime) {
       return true;
   }
 
-  if (exports.certs.length === 0)
+  if (x509.certs.length === 0)
     return true;
 
   return false;