diff --git a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
index af2c4e7e38b..db93c0ef325 100644
--- a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
+++ b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
@@ -6,6 +6,7 @@ import frappe
 from frappe import _
 from frappe.model.meta import get_field_precision
 from frappe.utils import cstr, flt
+from frappe.utils.nestedset import get_descendants_of
 from frappe.utils.xlsxutils import handle_html
 from pypika import Order
 
@@ -375,7 +376,12 @@ def apply_conditions(query, si, sii, filters, additional_conditions=None):
 		query = query.where(sii.item_code == filters.get("item_code"))
 
 	if filters.get("item_group"):
-		query = query.where(sii.item_group == filters.get("item_group"))
+		if frappe.db.get_value("Item Group", filters.get("item_group"), "is_group"):
+			item_groups = get_descendants_of("Item Group", filters.get("item_group"))
+			item_groups.append(filters.get("item_group"))
+			query = query.where(sii.item_group.isin(item_groups))
+		else:
+			query = query.where(sii.item_group == filters.get("item_group"))
 
 	if filters.get("income_account"):
 		query = query.where(