diff --git a/singleton/src/main/java/com/iluwatar/ThreadSafeLazyLoadedIvoryTower.java b/singleton/src/main/java/com/iluwatar/ThreadSafeLazyLoadedIvoryTower.java
index 2d9429faa..900c2b81f 100644
--- a/singleton/src/main/java/com/iluwatar/ThreadSafeLazyLoadedIvoryTower.java
+++ b/singleton/src/main/java/com/iluwatar/ThreadSafeLazyLoadedIvoryTower.java
@@ -3,6 +3,8 @@ package com.iluwatar;
 /**
  *
  * Thread-safe Singleton class.
+ * The instance is lazily initialized and thus needs synchronization
+ * mechanism.
  *
  */
 public class ThreadSafeLazyLoadedIvoryTower {