diff --git a/docs/eventing/accessing-traces.md b/docs/eventing/accessing-traces.md
index 06a53a7e736..a5138ed229c 100644
--- a/docs/eventing/accessing-traces.md
+++ b/docs/eventing/accessing-traces.md
@@ -41,7 +41,7 @@ metadata:
   name: config-tracing
   namespace: knative-eventing
 data:
-  enable: "true"
+  backend: "zipkin"
   zipkin-endpoint: "http://zipkin.istio-system.svc.cluster.local:9411/api/v2/spans"
   sample-rate: "0.1"
 ```