1 files changed, 1 insertions, 1 deletions
diff --git a/deps/npm/node_modules/sha/node_modules/readable-stream/lib/_stream_transform.js b/deps/npm/node_modules/sha/node_modules/readable-stream/lib/_stream_transform.js
index f08b05e525..707e4b3bf0 100644
--- a/deps/npm/node_modules/sha/node_modules/readable-stream/lib/_stream_transform.js
+++ b/deps/npm/node_modules/sha/node_modules/readable-stream/lib/_stream_transform.js
@@ -174,7 +174,7 @@ Transform.prototype._write = function(chunk, encoding, cb) {
 Transform.prototype._read = function(n) {
   var ts = this._transformState;
 
-  if (ts.writechunk && ts.writecb && !ts.transforming) {
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
     ts.transforming = true;
     this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
   } else {