diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index b2c6ccc..a30f2fa 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -141,7 +141,7 @@
 		super(SalesOrder, self).validate_with_previous_doc({
 			"Quotation": {
 				"ref_dn_field": "prevdoc_docname",
-				"compare_fields": [["company", "="], ["currency", "="]]
+				"compare_fields": [["company", "="]]
 			}
 		})