diff --git a/hello-tracing-backend/config.yaml b/hello-tracing-backend/config.yaml
index a03c33f..f426e56 100644
--- a/hello-tracing-backend/config.yaml
+++ b/hello-tracing-backend/config.yaml
@@ -4,5 +4,6 @@ api:
 
 telemetry:
   tracing:
+    enabled: true
     service_name: "hello-tracing-backend"
     otlp_exporter_endpoint: "http://localhost:4317"
diff --git a/hello-tracing-gateway/config.yaml b/hello-tracing-gateway/config.yaml
index 427cb2e..e0ee665 100644
--- a/hello-tracing-gateway/config.yaml
+++ b/hello-tracing-gateway/config.yaml
@@ -7,5 +7,6 @@ api:
 
 telemetry:
   tracing:
+    enabled: true
     service_name: "hello-tracing-gateway"
     otlp_exporter_endpoint: "http://localhost:4317"