diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 2d96cb5ff8d..7f1f47a74c1 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -91,8 +91,8 @@ class SalesInvoice(SellingController):
 			self.indicator_title = _("Paid")
 
 	def validate(self):
-		super().validate()
 		self.validate_auto_set_posting_time()
+		super().validate()
 
 		if not (self.is_pos or self.is_debit_note):
 			self.so_dn_required()