diff --git a/erpnext/accounts/doctype/accounts_settings/accounts_settings.py b/erpnext/accounts/doctype/accounts_settings/accounts_settings.py
index a3a32d5..5544913 100644
--- a/erpnext/accounts/doctype/accounts_settings/accounts_settings.py
+++ b/erpnext/accounts/doctype/accounts_settings/accounts_settings.py
@@ -40,9 +40,16 @@
 		
 		for doctype in ["Sales Invoice Item", "Purchase Invoice Item"]:
 			make_property_setter(doctype, "discount_account", "hidden", not(enable_discount_accounting), "Check", validate_fields_for_doctype=False)
-			make_property_setter(doctype, "discount_account", "mandatory", enable_discount_accounting, "Check", validate_fields_for_doctype=False)
+			if enable_discount_accounting:
+				make_property_setter(doctype, "discount_account", "mandatory_depends_on", "eval: doc.discount_amount", "Code", validate_fields_for_doctype=False)
+			else:
+				make_property_setter(doctype, "discount_account", "mandatory_depends_on", "", "Code", validate_fields_for_doctype=False)
 
 		for doctype in ["Sales Invoice", "Purchase Invoice"]:
 			make_property_setter(doctype, "additional_discount_account", "hidden", not(enable_discount_accounting), "Check", validate_fields_for_doctype=False)
+			if enable_discount_accounting:
+				make_property_setter(doctype, "additional_discount_account", "mandatory_depends_on", "eval: doc.discount_amount", "Code", validate_fields_for_doctype=False)
+			else:
+				make_property_setter(doctype, "additional_discount_account", "mandatory_depends_on", "", "Code", validate_fields_for_doctype=False)
 
 		make_property_setter("Item", "default_discount_account", "hidden", not(enable_discount_accounting), "Check", validate_fields_for_doctype=False)
\ No newline at end of file