diff --git a/core-java-lang-oop-2/README.md b/core-java-lang-oop-2/README.md
index af0aed5af3..cb424b08d2 100644
--- a/core-java-lang-oop-2/README.md
+++ b/core-java-lang-oop-2/README.md
@@ -4,3 +4,4 @@
 
 ### Relevant Articles: 
 - [Generic Constructors in Java](https://www.baeldung.com/java-generic-constructors)
+- [Cannot Reference “X” Before Supertype Constructor Has Been Called](https://www.baeldung.com/java-cannot-reference-x-before-supertype-constructor-error)