diff --git a/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.js b/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.js
index e05591e49df..836ec7b456c 100644
--- a/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.js
+++ b/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.js
@@ -52,7 +52,7 @@ frappe.query_reports["Item-wise Purchase Register"] = {
 			label: __("Group By"),
 			fieldname: "group_by",
 			fieldtype: "Select",
-			options: ["Supplier", "Item Group", "Item", "Invoice"],
+			options: ["", "Supplier", "Item Group", "Item", "Invoice"],
 		},
 	],
 	formatter: function (value, row, column, data, default_formatter) {
diff --git a/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py b/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py
index 1cd9b872a9b..8bc05273092 100644
--- a/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py
+++ b/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py
@@ -309,7 +309,7 @@ def apply_conditions(query, pi, pii, filters):
 		query = query.orderby(pi.posting_date, order=Order.desc)
 		query = query.orderby(pii.item_group, order=Order.desc)
 	else:
-		query = apply_group_by_conditions(filters, "Purchase Invoice")
+		query = apply_group_by_conditions(query, pi, pii, filters)
 
 	return query
 
diff --git a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.js b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.js
index 16a97733393..6fb015f7b74 100644
--- a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.js
+++ b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.js
@@ -70,7 +70,7 @@ frappe.query_reports["Item-wise Sales Register"] = {
 			label: __("Group By"),
 			fieldname: "group_by",
 			fieldtype: "Select",
-			options: ["Customer Group", "Customer", "Item Group", "Item", "Territory", "Invoice"],
+			options: ["", "Customer Group", "Customer", "Item Group", "Item", "Territory", "Invoice"],
 		},
 	],
 	formatter: function (value, row, column, data, default_formatter) {