diff --git a/examples/check.py b/examples/check.py
index accd29c..d06b6c0 100644
--- a/examples/check.py
+++ b/examples/check.py
@@ -26,6 +26,7 @@
 example_bank_account = lob.BankAccount.create(
     routing_number = '122100024',
     account_number = '1234564789',
+    signatory = 'John Doe',
     bank_address = {
         'name': 'Bank Address',
         'address_line1': '123 Wall Street',