diff --git a/nextcloud_backup/rootfs/opt/nextcloud_backup/routes/api.js b/nextcloud_backup/rootfs/opt/nextcloud_backup/routes/api.js
index 2edcbc2..f163947 100644
--- a/nextcloud_backup/rootfs/opt/nextcloud_backup/routes/api.js
+++ b/nextcloud_backup/rootfs/opt/nextcloud_backup/routes/api.js
@@ -141,7 +141,7 @@ router.post('/new-backup', function(req, res, next) {
         res.send();
         return;
     }
-    let name = 'Manual-' + moment().format('YYYY-MM-DD_HH:mm');
+    let name = 'Manual-' + moment().format('YYYY-MM-DD_HH-mm');
     hassioApiTools.createNewBackup(name).then((id) => {
         hassioApiTools.downloadSnapshot(id)
             .then(() => {
@@ -185,4 +185,4 @@ router.post('/clean-now', function(req, res, next){
 
 
 
-module.exports = router;
\ No newline at end of file
+module.exports = router;