diff --git a/src/routes/settings.js b/src/routes/settings.js
index 20a1c425b..0637fc175 100644
--- a/src/routes/settings.js
+++ b/src/routes/settings.js
@@ -183,6 +183,7 @@ function setBackupConfig(req, res, next) {
 
     settings.setBackupConfig(req.body, function (error) {
         if (error && error.reason === SettingsError.BAD_FIELD) return next(new HttpError(400, error.message));
+        if (error && error.reason === SettingsError.EXTERNAL_ERROR) return next(new HttpError(402, error.message));
         if (error) return next(new HttpError(500, error));
 
         next(new HttpSuccess(200));