diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourseWorkCreate/store.js b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourseWorkCreate/store.js
index 7b6c2b22e..3c2e034d7 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourseWorkCreate/store.js
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourseWorkCreate/store.js
@@ -20,7 +20,7 @@ const store = createStore({
       .map(p => p.person),
     personsReachables: window.accompanyingCourse.participations.filter(p => p.endDate == null)
       .map(p => p.person),
-    startDate: new Date(),
+    startDate: dateToISO(new Date()),
     endDate: null,
     isLoadingSocialActions: false,
     isPostingWork: false,