diff --git a/lib/bcoin.js b/lib/bcoin.js
index 6b3d766d0..a7eb18e0f 100644
--- a/lib/bcoin.js
+++ b/lib/bcoin.js
@@ -49,6 +49,7 @@ if (!bcoin.isBrowser) {
   }
 } else {
   bcoin.hash = require('hash.js');
+  bcoin.crypto = require('cry' + 'pto');
 }
 
 bcoin.ecdsa = bcoin.elliptic.ec('secp256k1');