diff --git a/quality_control_stock/models/stock_picking.py b/quality_control_stock/models/stock_picking.py
index 1583d9bd6..a62923bf7 100644
--- a/quality_control_stock/models/stock_picking.py
+++ b/quality_control_stock/models/stock_picking.py
@@ -37,18 +37,19 @@ class StockPicking(models.Model):
     def do_transfer(self):
         res = super(StockPicking, self).do_transfer()
         inspection_model = self.env['qc.inspection']
-        for operation in self.pack_operation_ids:
-            qc_trigger = self.env['qc.trigger'].search(
-                [('picking_type', '=', self.picking_type_id.id)])
-            trigger_lines = set()
-            for model in ['qc.trigger.product_category_line',
-                          'qc.trigger.product_template_line',
-                          'qc.trigger.product_line']:
-                partner = (self.partner_id
-                           if qc_trigger.partner_selectable else False)
-                trigger_lines = trigger_lines.union(
-                    self.env[model].get_trigger_line_for_product(
-                        qc_trigger, operation.product_id, partner=partner))
-            for trigger_line in _filter_trigger_lines(trigger_lines):
-                inspection_model._make_inspection(operation, trigger_line)
+        for picking in self:
+            for operation in picking.pack_operation_ids:
+                qc_trigger = self.env['qc.trigger'].search(
+                    [('picking_type', '=', picking.picking_type_id.id)])
+                trigger_lines = set()
+                for model in ['qc.trigger.product_category_line',
+                              'qc.trigger.product_template_line',
+                              'qc.trigger.product_line']:
+                    partner = (picking.partner_id
+                               if qc_trigger.partner_selectable else False)
+                    trigger_lines = trigger_lines.union(
+                        self.env[model].get_trigger_line_for_product(
+                            qc_trigger, operation.product_id, partner=partner))
+                for trigger_line in _filter_trigger_lines(trigger_lines):
+                    inspection_model._make_inspection(operation, trigger_line)
         return res