diff --git a/models/stock_production_lot.py b/models/stock_production_lot.py
index b926e6b5320d83b3d25dfadab3244960e2b28fc5..6c497effc7c567a855f429d3f73f937f89dfd547 100644
--- a/models/stock_production_lot.py
+++ b/models/stock_production_lot.py
@@ -67,6 +67,6 @@ class FumocStockProductionLot(models.Model):
         res = super().name_get()
         if self.env.context.get("show_qty"):
             res = self.browse([r[0] for r in res]).mapped(
-                lambda r: (r.id, r.name + " (en stock : %.0f)" % r.product_qty)
+                lambda r: (r.id, r.name and (r.name + " (en stock : %.0f)" % r.product_qty) or r.name)
             )
         return res