diff --git a/beesdoo_inventory/models/stock.py b/beesdoo_inventory/models/stock.py
index 0751215..fe56402 100644
--- a/beesdoo_inventory/models/stock.py
+++ b/beesdoo_inventory/models/stock.py
@@ -32,6 +32,6 @@ class StockPicking(models.Model):
     @api.multi
     def copy_qty(self):
         self.ensure_one()
-        for pack_operation in self.pack_operation_product_ids:
-            pack_operation.qty_done = pack_operation.product_qty
-        return True
\ No newline at end of file
+        for move_line in self.move_line_ids:
+            move_line.qty_done = move_line.product_qty
+        return True
diff --git a/beesdoo_inventory/views/stock.xml b/beesdoo_inventory/views/stock.xml
index f815e9d..d2bf14a 100644
--- a/beesdoo_inventory/views/stock.xml
+++ b/beesdoo_inventory/views/stock.xml
@@ -23,7 +23,7 @@
                 <field name="responsible" />
             </field>
             <button name="action_assign" position="after">
-                 <button name="copy_qty" string="Copy Pack Quantity" states="partially_available,assigned" type="object" class="oe_highlight"
+                 <button name="copy_qty" string="Copy Move Line Quantity" states="partially_available,assigned" type="object" class="oe_highlight"
                          attrs="{'invisible': ['|', ('picking_type_code', '!=', 'incoming')]}"/>
             </button>
             <xpath expr="//field[@name='product_id']" position="attributes">