diff --git a/aspnetcore/security/authentication/accconfirm.md b/aspnetcore/security/authentication/accconfirm.md
index 3182e9af3b..7b27324d81 100644
--- a/aspnetcore/security/authentication/accconfirm.md
+++ b/aspnetcore/security/authentication/accconfirm.md
@@ -202,7 +202,7 @@ Add a custom [DataProtectorTokenProvider\<TUser>](/dotnet/api/microsoft.aspnetco
 
 Add the custom provider to the service container:
 
-[!code-csharp[](accconfirm/sample/WebPWrecover22/StartupEmail.cs?name=snippet1&highlight=10-13)]
+[!code-csharp[](accconfirm/sample/WebPWrecover22/StartupEmail.cs?name=snippet1&highlight=10-13,18)]
 
 ### Resend email confirmation