diff --git a/lib/bitauth-common.js b/lib/bitauth-common.js
index 195ab2e..962e709 100644
--- a/lib/bitauth-common.js
+++ b/lib/bitauth-common.js
@@ -52,7 +52,7 @@ BitAuth.getSinFromPublicKey = function(pubkey) {
   // sha256 hash the pubkey
   var pubHash = crypto.createHash('sha256').update(pubkeyBuffer).digest();
 
-  // get the ripemd160 hash of the pubkey
+  // get the ripemd160 hash of the pubHash
   var pubRipe = crypto.createHash('rmd160').update(pubHash).digest();
 
   // add the version