diff --git a/scripts/upgrade b/scripts/upgrade
index 80ab197..a691cf6 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -156,7 +156,9 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
 
-mkdir /var/log/13ft
+if [ ! -d directory ]; then
+	mkdir /var/log/13ft
+fi
 
 # Create a dedicated systemd config
 ynh_add_systemd_config