diff --git a/erpnext/stock/doctype/warehouse/warehouse.py b/erpnext/stock/doctype/warehouse/warehouse.py
index 47a10c68cd3..312488984cd 100644
--- a/erpnext/stock/doctype/warehouse/warehouse.py
+++ b/erpnext/stock/doctype/warehouse/warehouse.py
@@ -180,7 +180,7 @@ def get_child_warehouses(warehouse):
 	lft, rgt = frappe.get_cached_value("Warehouse", warehouse, ["lft", "rgt"])
 
 	return frappe.db.sql_list("""select name from `tabWarehouse`
-		where lft >= %s and rgt =< %s""", (lft, rgt))
+		where lft >= %s and rgt <= %s""", (lft, rgt))
 
 def get_warehouses_based_on_account(account, company=None):
 	warehouses = []