diff --git a/migrations/0170.sql b/migrations/0170.sql
new file mode 100644
index 00000000..fb34805d
--- /dev/null
+++ b/migrations/0170.sql
@@ -0,0 +1,19 @@
+CREATE TRIGGER default_qu_INS AFTER INSERT ON product_barcodes
+BEGIN
+	UPDATE product_barcodes
+	SET qu_id = (SELECT qu_id_stock FROM products WHERE id = product_barcodes.product_id)
+	WHERE id = NEW.id
+		AND IFNULL(qu_id, 0) = 0;
+END;
+
+CREATE TRIGGER default_qu_UPD AFTER UPDATE ON product_barcodes
+BEGIN
+	UPDATE product_barcodes
+	SET qu_id = (SELECT qu_id_stock FROM products WHERE id = product_barcodes.product_id)
+	WHERE id = NEW.id
+		AND IFNULL(qu_id, 0) = 0;
+END;
+
+UPDATE product_barcodes
+SET qu_id = (SELECT qu_id_stock FROM products WHERE id = product_barcodes.product_id)
+WHERE IFNULL(qu_id, 0) = 0;