diff --git a/aspnetcore/tutorials/first-mvc-app/validation.md b/aspnetcore/tutorials/first-mvc-app/validation.md
index 874a45a2cc..571df34119 100644
--- a/aspnetcore/tutorials/first-mvc-app/validation.md
+++ b/aspnetcore/tutorials/first-mvc-app/validation.md
@@ -14,6 +14,8 @@ uid: tutorials/first-mvc-app/validation
 ---
 # Adding Validation
 
+By [Rick Anderson](https://twitter.com/RickAndMSFT)
+
 In this section you'll add validation logic to the `Movie` model, and you'll ensure that the validation rules are enforced any time a user attempts to create or edit a movie.
 
 ## Keeping things DRY