diff --git a/scripts/upgrade b/scripts/upgrade
index f3bca0f..356fb96 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -35,12 +35,12 @@ if [ -z "${max_file_size:-}" ]; then
 fi
 
 if [ -z "${use_ldap:-}" ]; then
-  use_ldap=0
+	use_ldap=0
 	ynh_app_setting_set --app=$app --key=use_ldap --value=$use_ldap
 fi
 
 if [ -z "${secret:-}" ]; then
-  secret=$(ynh_string_random --length=24)
+	secret=$(ynh_string_random --length=24)
 	ynh_app_setting_set --app=$app --key=secret --value=$secret
 fi
 #=================================================