diff --git a/content/en/docs/demo/services/cart.md b/content/en/docs/demo/services/cart.md
index 10588b0a5631..862acbe704ae 100644
--- a/content/en/docs/demo/services/cart.md
+++ b/content/en/docs/demo/services/cart.md
@@ -85,6 +85,7 @@ Action<ResourceBuilder> appResourceBuilder =
 builder.Services.AddOpenTelemetry()
     .ConfigureResource(appResourceBuilder)
     .WithMetrics(meterBuilder => meterBuilder
+        .AddProcessInstrumentation()
         .AddRuntimeInstrumentation()
         .AddAspNetCoreInstrumentation()
         .AddOtlpExporter());