diff --git a/core-java-modules/core-java-lang-3/README.md b/core-java-modules/core-java-lang-3/README.md
index 5279cc23b0..8ed945a56c 100644
--- a/core-java-modules/core-java-lang-3/README.md
+++ b/core-java-modules/core-java-lang-3/README.md
@@ -11,4 +11,5 @@ This module contains articles about core features in the Java language
 - [The transient Keyword in Java](https://www.baeldung.com/java-transient-keyword)
 - [How to Access an Iteration Counter in a For Each Loop](https://www.baeldung.com/java-foreach-counter)
 - [Comparing Doubles in Java](https://www.baeldung.com/java-comparing-doubles)
+- [Guide to Implementing the compareTo Method](https://www.baeldung.com/java-compareto)
 - [[<-- Prev]](/core-java-modules/core-java-lang-2)