diff --git a/packages/update-manager/main.js b/packages/update-manager/main.js
index bf7b3e6..410c1ba 100644
--- a/packages/update-manager/main.js
+++ b/packages/update-manager/main.js
@@ -98,7 +98,6 @@ module.exports = {
         'uploadStop'() {
             if (this.ftp) {
                 this.ftp.destroy();
-                this.ftp = null;
             }
         }
     },