diff --git a/core-kotlin-modules/core-kotlin-lang-oop-2/README.md b/core-kotlin-modules/core-kotlin-lang-oop-2/README.md
index 27536273dc..a62a25c01d 100644
--- a/core-kotlin-modules/core-kotlin-lang-oop-2/README.md
+++ b/core-kotlin-modules/core-kotlin-lang-oop-2/README.md
@@ -7,4 +7,5 @@ This module contains articles about Object-Oriented Programming in Kotlin
 - [Generics in Kotlin](https://www.baeldung.com/kotlin-generics)
 - [Delegated Properties in Kotlin](https://www.baeldung.com/kotlin-delegated-properties)
 - [Delegation Pattern in Kotlin](https://www.baeldung.com/kotlin-delegation-pattern)
+- [Anonymous Inner Classes in Kotlin](https://www.baeldung.com/kotlin/anonymous-inner-classes)
 - [[<-- Prev]](/core-kotlin-modules/core-kotlin-lang-oop)