diff --git a/app/modules/config.ts b/app/modules/config.ts
index a8bebf3e47e14a2e14763468d592da4b92c5cc1a..641026c656b80c63fb49948e8771a6c312b110d8 100644
--- a/app/modules/config.ts
+++ b/app/modules/config.ts
@@ -1,5 +1,6 @@
 "use strict";
 import {ConfDTO} from "../lib/dto/ConfDTO"
+import {CommonConstants} from "../lib/common-libs/constants"
 
 module.exports = {
   duniter: {
@@ -7,9 +8,11 @@ module.exports = {
     config: {
       onLoading: async (conf:ConfDTO) => {
         conf.msPeriod = conf.msWindow
+        conf.switchOnHeadAdvance = CommonConstants.SWITCH_ON_BRANCH_AHEAD_BY_X_BLOCKS
       },
       beforeSave: async (conf:ConfDTO) => {
         conf.msPeriod = conf.msWindow
+        conf.switchOnHeadAdvance = CommonConstants.SWITCH_ON_BRANCH_AHEAD_BY_X_BLOCKS
       }
     },