diff --git a/addons/hr_holidays/models/hr_leave_accrual_plan.py b/addons/hr_holidays/models/hr_leave_accrual_plan.py
index 467762b3993..de0c83cc8ac 100644
--- a/addons/hr_holidays/models/hr_leave_accrual_plan.py
+++ b/addons/hr_holidays/models/hr_leave_accrual_plan.py
@@ -39,7 +39,7 @@ class AccrualPlan(models.Model):
         )
         mapped_count = {group['accrual_plan_id'][0]: group['accrual_plan_id_count'] for group in level_read_group}
         for plan in self:
-            plan.level_count = mapped_count[plan.id]
+            plan.level_count = mapped_count.get(plan.id, 0)
 
     @api.depends('allocation_ids')
     def _compute_employee_count(self):