diff --git a/erpnext/patches/v7_1/set_student_guardian.py b/erpnext/patches/v7_1/set_student_guardian.py
index 52fb309..7eac23b 100644
--- a/erpnext/patches/v7_1/set_student_guardian.py
+++ b/erpnext/patches/v7_1/set_student_guardian.py
@@ -4,6 +4,7 @@
 	if frappe.db.exists("DocType", "Guardian"):
 		frappe.reload_doc("schools", "doctype", "student")
 		frappe.reload_doc("schools", "doctype", "student_guardian")
+		frappe.reload_doc("schools", "doctype", "student_sibling")
 		guardian = frappe.get_all("Guardian", fields=["name", "student"])
 		for d in guardian:
 			if d.student: