diff --git a/erpnext/manufacturing/doctype/work_order/work_order.py b/erpnext/manufacturing/doctype/work_order/work_order.py
index 2b936be..c4238ac 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/work_order.py
@@ -657,8 +657,9 @@
 	wo_doc = frappe.new_doc("Work Order")
 	wo_doc.production_item = item
 	wo_doc.update(item_details)
-	if qty > 0:
-		wo_doc.qty = qty
+
+	if flt(qty) > 0:
+		wo_doc.qty = flt(qty)
 		wo_doc.get_items_and_operations_from_bom()
 
 	return wo_doc