diff --git a/scripts/backup b/scripts/backup
index 1601847..79a75bc 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -57,8 +57,12 @@ ynh_backup --src_path="/etc/systemd/system/$app.service"
 #=================================================
 ynh_print_info --message="Backing up the MySQL database..."
 
+(cd $install_dir && ynh_exec_as "$app" php$phpversion bin/console maintenance 1)
+
 ynh_mysql_dump_db --database="$db_name" > db.sql
 
+(cd $install_dir && ynh_exec_as "$app" php$phpversion bin/console maintenance 0)
+
 #=================================================
 # END OF SCRIPT
 #=================================================