diff --git a/sdm/src/java/decorator/ICar.java b/sdm/src/java/decorator/ICar.java
index c387ac6..02e63db 100644
--- a/sdm/src/java/decorator/ICar.java
+++ b/sdm/src/java/decorator/ICar.java
@@ -1,6 +1,6 @@
 package src.java.decorator;
 
-public interface ICar {
+public interface ICar { // Somehow, ICar should use OptionalExtra to allow the decoration of any car
     ICar addOption();
     void showCar();
 }