diff --git a/erpnext/stock/doctype/stock_entry/stock_entry.py b/erpnext/stock/doctype/stock_entry/stock_entry.py
index a88a6df51fb..a4d1c19c285 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry.py
+++ b/erpnext/stock/doctype/stock_entry/stock_entry.py
@@ -2430,7 +2430,7 @@ class StockEntry(StockController, SubcontractingInwardController):
 							self.to_warehouse if self.purpose == "Send to Subcontractor" else ""
 						)
 
-						if original_item != item.get("item_code"):
+						if isinstance(original_item, str) and original_item != item.get("item_code"):
 							item["original_item"] = original_item
 
 					self.add_to_stock_entry_detail(item_dict)