diff --git a/scripts/backup b/scripts/backup
index c3f47f7..54d485a 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -5,6 +5,7 @@ app=kanboard
 # which will be compressed afterward
 backup_dir=$1/apps/$app
 sudo mkdir -p $backup_dir
+sudo chown admin: $backup_dir
 
 # Backup sources & data
 sudo cp -a /var/www/$app/. $backup_dir/sources