diff --git a/10_Blackjack/java/src/Card.java b/10_Blackjack/java/src/Card.java
index 3f88f9c5..53f7f6dd 100644
--- a/10_Blackjack/java/src/Card.java
+++ b/10_Blackjack/java/src/Card.java
@@ -10,6 +10,7 @@
  * this is a good candidate for immutability.
  *
  */
+// TODO consider making this a Record
 public final class Card {
 
 	public enum Suit {