diff --git a/bitnami/kafka/README.md b/bitnami/kafka/README.md
index 0f045a179ead..abf746d69248 100644
--- a/bitnami/kafka/README.md
+++ b/bitnami/kafka/README.md
@@ -286,6 +286,7 @@ To do so, add the following environment variables to your docker-compose:
       - ALLOW_PLAINTEXT_LISTENER=yes
 +     - KAFKA_CFG_LISTENERS=PLAINTEXT://:9092,CONTROLLER://:9093,EXTERNAL://:9094
 +     - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092,EXTERNAL://localhost:9094
++     - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,EXTERNAL:PLAINTEXT,PLAINTEXT:PLAINTEXT
 ```
 
 And expose the external port: