diff --git a/lib/crypto/backend-browser.js b/lib/crypto/backend-browser.js
index 9252a288..26f465c9 100644
--- a/lib/crypto/backend-browser.js
+++ b/lib/crypto/backend-browser.js
@@ -46,7 +46,7 @@ backend.sha256 = function _sha256(data) {
 };
 
 backend.hash160 = function hash160(data) {
-  return backend.hash('ripemd160', sha256.digest(hash));
+  return backend.hash('ripemd160', sha256.digest(data));
 };
 
 backend.hash256 = function hash256(data) {