diff --git a/aspnetcore/fundamentals/configuration/index.md b/aspnetcore/fundamentals/configuration/index.md
index 43ec5378d0..aecdfffe0c 100644
--- a/aspnetcore/fundamentals/configuration/index.md
+++ b/aspnetcore/fundamentals/configuration/index.md
@@ -154,7 +154,7 @@ To test that the preceding commands override *appsettings.json* and *appsettings
 
 Call <xref:Microsoft.Extensions.Configuration.EnvironmentVariablesExtensions.AddEnvironmentVariables*> with a string to specify a prefix for environment variables:
 
-[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Program.cs?name=snippet_env&highlight=3-4)]
+[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Program.cs?name=snippet_env&highlight=5)]
 
 In the preceding code: