diff --git a/scripts/upgrade b/scripts/upgrade
index f8c8ad5..3070552 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -114,7 +114,7 @@ ynh_script_progression --message="Upgrading systemd configuration..." --weight=3
 
 # Create a dedicated systemd config
 start_file="$final_path/env/bin/$app"
-ynh_add_systemd_config --others_var="conf_file start_file"     # substitute __CONF_FILE__ by $conf_file
+ynh_add_systemd_config
 
 #=================================================
 # MODIFY A CONFIG FILE