diff --git a/erpnext/controllers/sales_and_purchase_return.py b/erpnext/controllers/sales_and_purchase_return.py
index ed80bd2..f893a91 100644
--- a/erpnext/controllers/sales_and_purchase_return.py
+++ b/erpnext/controllers/sales_and_purchase_return.py
@@ -220,7 +220,7 @@
 				tax.tax_amount = -1 * tax.tax_amount
 
 		if doc.get("is_return"):
-    			if doc.doctype == 'Sales Invoice':
+			if doc.doctype == 'Sales Invoice':
 				doc.set('payments', [])
 				for data in source.payments:
    					paid_amount = 0.00