diff --git a/back/methods/osrm-config/optimize.js b/back/methods/osrm-config/optimize.js
index 5d2ade935..e0412c74c 100644
--- a/back/methods/osrm-config/optimize.js
+++ b/back/methods/osrm-config/optimize.js
@@ -13,6 +13,10 @@ module.exports = Self => {
             arg: 'firstAddressId',
             type: 'number',
             required: false
+        }, {
+            arg: 'lastAddressId',
+            type: 'number',
+            required: false
         }],
         returns: {
             type: 'object',