diff --git a/addons/mrp/models/mrp_workorder.py b/addons/mrp/models/mrp_workorder.py
index edbf3ac0674..2f671309c66 100644
--- a/addons/mrp/models/mrp_workorder.py
+++ b/addons/mrp/models/mrp_workorder.py
@@ -322,7 +322,7 @@ class MrpWorkorder(models.Model):
             order.duration = sum(order.time_ids.mapped('duration'))
             order.duration_unit = round(order.duration / max(order.qty_produced, 1), 2)  # rounding 2 because it is a time
             if order.duration_expected:
-                order.duration_percent = 100 * (order.duration_expected - order.duration) / order.duration_expected
+                order.duration_percent = max(-2147483648, min(2147483647, 100 * (order.duration_expected - order.duration) / order.duration_expected))
             else:
                 order.duration_percent = 0