diff --git a/erpnext/manufacturing/doctype/production_plan/services/material_request.py b/erpnext/manufacturing/doctype/production_plan/services/material_request.py
index a17d434136a..c4f12d8f1b7 100644
--- a/erpnext/manufacturing/doctype/production_plan/services/material_request.py
+++ b/erpnext/manufacturing/doctype/production_plan/services/material_request.py
@@ -159,8 +159,7 @@ def get_items_for_material_requests(
 
 
 def _normalize_mr_doc(doc):
-	if isinstance(doc, str):
-		doc = frappe._dict(json.loads(doc))
+	doc = frappe._dict(frappe.parse_json(doc))
 	return doc