diff --git a/lib/msg-v3/index.js b/lib/msg-v3/index.js
index 06d9b6b..64c61c0 100644
--- a/lib/msg-v3/index.js
+++ b/lib/msg-v3/index.js
@@ -178,17 +178,17 @@ function createRoot(id, domain, keypair) {
   return msg
 }
 
+function getRandomNonce() {
+  return base58.encode(crypto.randomBytes(32))
+}
+
 /**
  * @param {Keypair} keypair
  * @param {string} domain
  * @param {string | (() => string)} nonce
  * @returns {Msg}
  */
-function createIdentity(
-  keypair,
-  domain,
-  nonce = () => base58.encode(crypto.randomBytes(32))
-) {
+function createIdentity(keypair, domain, nonce = getRandomNonce) {
   const actualNonce = typeof nonce === 'function' ? nonce() : nonce
   return create({
     data: { add: keypair.public, nonce: actualNonce },