diff --git a/frappe/query_builder/functions.py b/frappe/query_builder/functions.py
index 5ccb266945..39c67178c2 100644
--- a/frappe/query_builder/functions.py
+++ b/frappe/query_builder/functions.py
@@ -1,7 +1,14 @@
 from pypika.functions import *
+from pypika.terms import Function
 from frappe.query_builder.utils import ImportMapper, db_type_is
 from frappe.query_builder.custom import GROUP_CONCAT, STRING_AGG, MATCH, TO_TSVECTOR
 
+
+class Concat_ws(Function):
+	def __init__(self, *terms, **kwargs):
+		super(Concat_ws, self).__init__("CONCAT_WS", *terms, **kwargs)
+
+
 GroupConcat = ImportMapper(
 	{
 		db_type_is.MARIADB: GROUP_CONCAT,