diff --git a/addons/stock/i18n/stock.pot b/addons/stock/i18n/stock.pot
index 373d305d54d..c5a2a965bb6 100644
--- a/addons/stock/i18n/stock.pot
+++ b/addons/stock/i18n/stock.pot
@@ -9042,6 +9042,12 @@ msgstr ""
 msgid "You can only delete draft moves."
 msgstr ""
 
+#. module: stock
+#: code:addons/stock/models/stock_scrap.py:0
+#, python-format
+msgid "You can only enter positive quantities."
+msgstr ""
+
 #. module: stock
 #: code:addons/stock/models/stock_move_line.py:0
 #, python-format
diff --git a/addons/stock/models/stock_scrap.py b/addons/stock/models/stock_scrap.py
index 4192a8e0fc1..575491301ec 100644
--- a/addons/stock/models/stock_scrap.py
+++ b/addons/stock/models/stock_scrap.py
@@ -3,7 +3,7 @@
 
 from odoo import _, api, fields, models
 from odoo.exceptions import UserError
-from odoo.tools import float_compare
+from odoo.tools import float_compare, float_is_zero
 
 
 class StockScrap(models.Model):
@@ -171,6 +171,9 @@ class StockScrap(models.Model):
 
     def action_validate(self):
         self.ensure_one()
+        if float_is_zero(self.scrap_qty,
+                         precision_rounding=self.product_uom_id.rounding):
+            raise UserError(_('You can only enter positive quantities.'))
         if self.product_id.type != 'product':
             return self.do_scrap()
         precision = self.env['decimal.precision'].precision_get('Product Unit of Measure')