diff --git a/lib/versions/npm.js b/lib/versions/npm.js
index 0864817e2..8d37831f3 100644
--- a/lib/versions/npm.js
+++ b/lib/versions/npm.js
@@ -46,7 +46,6 @@ class Npm {
             cb(null, result.location);
           });
           delete this._installing[packageName + version];
-          //callback(null, result.location);
       }).catch(err => {
         this._installing[packageName + version].forEach((cb) => {
           cb(err);