diff --git a/index.js b/index.js
index 294c0a3..3d595da 100644
--- a/index.js
+++ b/index.js
@@ -102,9 +102,9 @@ function startGulp(name, opts) {
     var browserifyCommand;
 
     if (name !== 'lib') {
-      browserifyCommand = buildBinPath + 'browserify --require ./index.js:' + fullname + ' --external bitcore-lib -o ' + fullname + '.js';
+      browserifyCommand = buildBinPath + 'browserify --require ./index.js:' + fullname + ' --external bitcore-lib-zcash -o ' + fullname + '.js';
     } else {
-      browserifyCommand = buildBinPath + 'browserify --require ./index.js:bitcore-lib -o bitcore-lib.js';
+      browserifyCommand = buildBinPath + 'browserify --require ./index.js:bitcore-lib-zcash -o bitcore-lib-zcash.js';
     }
 
     gulp.task('browser:uncompressed', shell.task([