diff --git a/docs/eventing/sink/kafka-sink.md b/docs/eventing/sink/kafka-sink.md
index d4829506d..9d033b1cb 100644
--- a/docs/eventing/sink/kafka-sink.md
+++ b/docs/eventing/sink/kafka-sink.md
@@ -77,7 +77,10 @@ spec:
    topic: mytopic
    bootstrapServers:
       - my-cluster-kafka-bootstrap.kafka:9092
-   auth.secret.ref.name: my_secret
+   auth:
+     secret:
+       ref:
+         name: my_secret
 ```
 
 The `Secret` `my_secret` must exist in the same namespace of the `KafkaSink`, in this case: `default`.