diff --git a/erpnext/patches/v12_0/set_total_batch_quantity.py b/erpnext/patches/v12_0/set_total_batch_quantity.py
index 4f649deb54..b02da305ac 100644
--- a/erpnext/patches/v12_0/set_total_batch_quantity.py
+++ b/erpnext/patches/v12_0/set_total_batch_quantity.py
@@ -5,5 +5,5 @@ def execute():
 	frappe.reload_doc("stock", "doctype", "batch")
 
 	for batch in frappe.get_all("Batch", fields=["name", "batch_id"]):
-		batch_qty = frappe.db.get_value("Stock Ledger Entry", {"docstatus": 1, "batch_no": batch.batch_id}, "sum(actual_qty)")
+		batch_qty = frappe.db.get_value("Stock Ledger Entry", {"docstatus": 1, "batch_no": batch.batch_id}, "sum(actual_qty)") or 0.0
 		frappe.db.set_value("Batch", batch.name, "batch_qty", batch_qty, update_modified=False)