diff --git a/aleksis/apps/alsijil/frontend/components/coursebook/absences/AbsenceCreationForm.vue b/aleksis/apps/alsijil/frontend/components/coursebook/absences/AbsenceCreationForm.vue
index bee801bb2be6229238698ad9d472e1ede5f0f83b..af7d0e86bf46df86150aa65621edebae5e1eb582 100644
--- a/aleksis/apps/alsijil/frontend/components/coursebook/absences/AbsenceCreationForm.vue
+++ b/aleksis/apps/alsijil/frontend/components/coursebook/absences/AbsenceCreationForm.vue
@@ -112,9 +112,9 @@ export default {
     allPersons: persons,
     periodsByDay: {
       query: periodsByDay,
-        this.handleStartDate(this.start);
-        this.handleEndDate(this.end);
       result(_) {
+        this.handleStartDate(this.start.toISO());
+        this.handleEndDate(this.end.toISO());
       },
     },
   },