diff --git a/fundamentals/minimal-apis/samples/ValidateOnBuildWeb/Program.cs b/fundamentals/minimal-apis/samples/ValidateOnBuildWeb/Program.cs
index c83eaf9..12fa582 100644
--- a/fundamentals/minimal-apis/samples/ValidateOnBuildWeb/Program.cs
+++ b/fundamentals/minimal-apis/samples/ValidateOnBuildWeb/Program.cs
@@ -1,6 +1,9 @@
 #define FIRST // FIRST SECOND ValidateOnBuild
 #if NEVER
 #elif FIRST
+/* An easy way to test Dev vs release is to set 
+ *  "ASPNETCORE_ENVIRONMENT": "Release" in one profile in launchSettings.json
+ */
 // <snippet_1>
 var builder = WebApplication.CreateBuilder(args);