diff --git a/apache-kafka-2/README.md b/apache-kafka-2/README.md
index e86504d605..159d631d61 100644
--- a/apache-kafka-2/README.md
+++ b/apache-kafka-2/README.md
@@ -9,3 +9,4 @@ You can build the project from the command line using: *mvn clean install*, or i
 - [Guide to Check if Apache Kafka Server Is Running](https://www.baeldung.com/apache-kafka-check-server-is-running)
 - [Add Custom Headers to a Kafka Message](https://www.baeldung.com/java-kafka-custom-headers)
 - [Get Last N Messages in Apache Kafka Topic](https://www.baeldung.com/java-apache-kafka-get-last-n-messages)
+- [Is a Key Required as Part of Sending Messages to Kafka?](https://www.baeldung.com/java-kafka-message-key)