diff --git a/lib/stripe/account.rb b/lib/stripe/account.rb
index 0ab516b7..f049bcf8 100644
--- a/lib/stripe/account.rb
+++ b/lib/stripe/account.rb
@@ -1,5 +1,6 @@
 module Stripe
   class Account < APIResource
+    extend Gem::Deprecate
     extend Stripe::APIOperations::Create
     extend Stripe::APIOperations::List
     include Stripe::APIOperations::Delete
@@ -7,8 +8,8 @@ module Stripe
 
     save_nested_resource :external_account
 
+    # This method is deprecated. Please use `#external_account=` instead.
     save_nested_resource :bank_account
-    extend Gem::Deprecate
     deprecate :bank_account=, "#external_account=", 2017, 8
 
     def resource_url