diff --git a/src/js/fs.js b/src/js/fs.js
index 6080b7a34a..66196624ad 100644
--- a/src/js/fs.js
+++ b/src/js/fs.js
@@ -449,8 +449,7 @@ try {
         // null must be pushed so the 'end' event will be emitted.
         self.push(null);
       } else {
-        self.push(bytes_read == self._buff.length ?
-                  self._buff : self._buff.slice(0, bytes_read));
+        self.push(self._buff.slice(0, bytes_read));
         self.doRead();
       }
     });