diff --git a/src/Deferred.java b/src/Deferred.java
index 19669a2..e89b0b3 100644
--- a/src/Deferred.java
+++ b/src/Deferred.java
@@ -424,7 +424,7 @@
  * </ul>
  * @param <T> The type of the deferred result.
  */
-public final class Deferred<T> {
+public class Deferred<T> {
 
   // I apologize in advance for all the @SuppressWarnings("unchecked") in this
   // class.  I feel like I'm cheating the type system but, to be honest, Java's