diff --git a/Linux/mysql_backup.sh b/Linux/mysql_backup.sh
index 30b365a..66b50c7 100644
--- a/Linux/mysql_backup.sh
+++ b/Linux/mysql_backup.sh
@@ -9,7 +9,7 @@ retention=3
 mkdir -p $backup_dir
 
 # database backup
-for DB in $(mysql -e 'show databases' -sN|grep -v 'information_schema\|performance_schema'); do
+for DB in $(mysql -e 'show databases' -sN | grep -v 'information_schema\|performance_schema'); do
   mysqldump $DB > "$backup_dir/$date.$DB.sql";
 done