diff --git a/mrp_restrict_lot/models/stock_rule.py b/mrp_restrict_lot/models/stock_rule.py
index bd52446faca..54db408c097 100644
--- a/mrp_restrict_lot/models/stock_rule.py
+++ b/mrp_restrict_lot/models/stock_rule.py
@@ -35,7 +35,7 @@ def _prepare_mo_vals(
             lot = self.env["stock.lot"].browse(lot_id)
             mo_name = lot.name
             existing_mo = self.env["mrp.production"].search(
-                [("lot_producing_id", "=", lot_id)]
+                [("lot_producing_id", "=", lot_id), ("name", "=", mo_name)], limit=1
             )
             if existing_mo:
                 mo_name = f"{mo_name}-{len(existing_mo)}"