merging latest changes with addition of working commandline PR

1 files changed, 1 insertions, 1 deletions

diff --git a/index.js b/index.js
index 4a2ac45..5d3e1f8 100644
--- a/index.js
+++ b/index.js
@@ -28,7 +28,7 @@ function WebTorrent (opts) {
 
 WebTorrent.prototype.add = function (torrentId, cb) {
   var self = this
-  if (!cb) cb = function () {}
+  if (typeof cb !== 'function') cb = function () {}
 
   // TODO: support passing in an index to file to download
   // self.index = opts.index