diff --git a/patterns/BoxObserver.java b/patterns/BoxObserver.java
index 0bcf2bf9..eec4226b 100644
--- a/patterns/BoxObserver.java
+++ b/patterns/BoxObserver.java
@@ -4,7 +4,7 @@
 // Visit http://OnJava8.com for more book information.
 // Demonstration of Observer pattern using
 // Java's built-in observer classes
-// {ValidateByHand} CI servers have problems
+// !!!! CI servers have problems
 import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;