diff --git a/selling/doctype/sales_order/sales_order.py b/selling/doctype/sales_order/sales_order.py
index 210e56f04d5..fb04714a078 100644
--- a/selling/doctype/sales_order/sales_order.py
+++ b/selling/doctype/sales_order/sales_order.py
@@ -166,7 +166,7 @@ class DocType(SellingController):
 		super(DocType, self).validate_with_previous_doc(self.tname, {
 			"Quotation": {
 				"ref_dn_field": "prevdoc_docname",
-				"compare_fields": [["customer", "="], ["company", "="], ["currency", "="]]
+				"compare_fields": [["company", "="], ["currency", "="]]
 			}
 		})