diff --git a/src/backuptask.js b/src/backuptask.js
index caaed3613..69eb4271b 100644
--- a/src/backuptask.js
+++ b/src/backuptask.js
@@ -45,6 +45,7 @@ const apps = require('./apps.js'),
 
 const BACKUP_UPLOAD_CMD = path.join(__dirname, 'scripts/backupupload.js');
 const getBackupConfig = util.callbackify(settings.getBackupConfig);
+const runBackupUploadAsync = util.promisify(runBackupUpload);
 
 function canBackupApp(app) {
     // only backup apps that are installed or specific pending states
@@ -747,7 +748,7 @@ async function uploadBoxSnapshot(backupConfig, progressCallback) {
 
     const startTime = new Date();
 
-    await util.promisify(runBackupUpload)(uploadConfig, progressCallback);
+    await runBackupUploadAsync(uploadConfig, progressCallback);
 
     debug(`uploadBoxSnapshot: took ${(new Date() - startTime)/1000} seconds`);
 
@@ -909,7 +910,7 @@ async function uploadAppSnapshot(backupConfig, app, progressCallback) {
 
     const startTime = new Date();
 
-    await util.promisify(runBackupUpload)(uploadConfig, progressCallback);
+    await runBackupUploadAsync(uploadConfig, progressCallback);
 
     debug(`uploadAppSnapshot: ${app.fqdn} upload to ${remotePath}. ${(new Date() - startTime)/1000} seconds`);
 
@@ -953,7 +954,7 @@ async function uploadMailSnapshot(backupConfig, progressCallback) {
 
     const startTime = new Date();
 
-    await util.promisify(runBackupUpload)(uploadConfig, progressCallback);
+    await runBackupUploadAsync(uploadConfig, progressCallback);
 
     debug(`uploadMailSnapshot: took ${(new Date() - startTime)/1000} seconds`);