diff --git a/core-java-modules/core-java-lang-5/README.md b/core-java-modules/core-java-lang-5/README.md
index 9505d02fc2..84e9a575c2 100644
--- a/core-java-modules/core-java-lang-5/README.md
+++ b/core-java-modules/core-java-lang-5/README.md
@@ -6,3 +6,4 @@ This module contains articles about core features in the Java language
 
 - [Difference Between == and equals() in Java](https://www.baeldung.com/java-equals-method-operator-difference)
 - [Advantages and Disadvantages of Using Java Wildcard Imports](https://www.baeldung.com/java-wildcard-imports)
+- [Toggle a Boolean Variable in Java](https://www.baeldung.com/java-toggle-boolean)