diff --git a/examples/protected-api/Api/Program.cs b/examples/protected-api/Api/Program.cs
index bc07b21..fa7a7b9 100644
--- a/examples/protected-api/Api/Program.cs
+++ b/examples/protected-api/Api/Program.cs
@@ -1,3 +1,5 @@
+// Credit to https://medium.com/kpmg-uk-engineering/getting-started-with-spicedb-in-net-741e353a4d83
+// for the example.
 using Authzed.Api.V1;
 using Grpc.Core;
 using Grpc.Net.Client;