diff --git a/erpnext/controllers/status_updater.py b/erpnext/controllers/status_updater.py
index 8e7740d5c8c1..d4972973d0b4 100644
--- a/erpnext/controllers/status_updater.py
+++ b/erpnext/controllers/status_updater.py
@@ -226,8 +226,7 @@ def validate_qty(self):
 				continue
 
 			# get unique transactions to update
-			children = self.get_all_children()
-			for d in children:
+			for d in self.get_all_children():
 				if hasattr(d, "qty") and d.qty < 0 and not self.get("is_return"):
 					frappe.throw(_("For an item {0}, quantity must be positive number").format(d.item_code))