diff --git a/ch06/ex6-3.md b/ch06/ex6-3.md
index f75a781..cd208b0 100644
--- a/ch06/ex6-3.md
+++ b/ch06/ex6-3.md
@@ -1,4 +1,4 @@
-# 6.3 Extending a Class
+# 6.3 Adding Class Inheritance
 
 # Example