diff --git a/erpnext/accounts/doctype/tax_rule/tax_rule.py b/erpnext/accounts/doctype/tax_rule/tax_rule.py
index 2d91a3c..9c091e8 100644
--- a/erpnext/accounts/doctype/tax_rule/tax_rule.py
+++ b/erpnext/accounts/doctype/tax_rule/tax_rule.py
@@ -8,6 +8,7 @@
 from frappe.model.document import Document
 from frappe.utils import cstr, cint
 from frappe.contacts.doctype.address.address import get_default_address
+from frappe.utils.nestedset import get_root_of
 from erpnext.setup.doctype.customer_group.customer_group import get_parent_customer_groups
 
 class IncorrectCustomerGroup(frappe.ValidationError): pass
@@ -136,7 +137,7 @@
 		if key=="use_for_shopping_cart":
 			conditions.append("use_for_shopping_cart = {0}".format(1 if value else 0))
 		if key == 'customer_group':
-			if not value: value = _("All Customer Groups")
+			if not value: value = get_root_of("Customer Group")
 			customer_group_condition = get_customer_group_condition(value)
 			conditions.append("ifnull({0}, '') in ('', {1})".format(key, customer_group_condition))
 		else: