diff --git a/erpnext/selling/doctype/quotation/quotation.py b/erpnext/selling/doctype/quotation/quotation.py
index 863fbc4059..96092b1523 100644
--- a/erpnext/selling/doctype/quotation/quotation.py
+++ b/erpnext/selling/doctype/quotation/quotation.py
@@ -268,7 +268,7 @@ def _make_sales_order(source_name, target_doc=None, ignore_permissions=False):
 
 def set_expired_status():
 	# filter out submitted non expired quotations whose validity has been ended
-	cond = "`tabQuotation`.docstatus = 1 and `tabQuotation`.status != 'Expired' and `tabQuotation`.valid_till < %s"
+	cond = "`tabQuotation`.docstatus = 1 and `tabQuotation`.status NOT IN ('Expired', 'Lost') and `tabQuotation`.valid_till < %s"
 	# check if those QUO have SO against it
 	so_against_quo = """
 		SELECT