diff --git a/erpnext/manufacturing/doctype/bom_update_tool/bom_update_tool.py b/erpnext/manufacturing/doctype/bom_update_tool/bom_update_tool.py
index e6c10ad..742d18c 100644
--- a/erpnext/manufacturing/doctype/bom_update_tool/bom_update_tool.py
+++ b/erpnext/manufacturing/doctype/bom_update_tool/bom_update_tool.py
@@ -90,6 +90,7 @@
 		update_cost()
 
 def replace_bom(args):
+	frappe.db.auto_commit_on_many_writes = 1
 	args = frappe._dict(args)
 
 	doc = frappe.get_doc("BOM Update Tool")
@@ -97,6 +98,8 @@
 	doc.new_bom = args.new_bom
 	doc.replace_bom()
 
+	frappe.db.auto_commit_on_many_writes = 0
+
 def update_cost():
 	frappe.db.auto_commit_on_many_writes = 1
 	bom_list = get_boms_in_bottom_up_order()