diff --git a/code/src/java/pcgen/cdom/content/CNAbility.java b/code/src/java/pcgen/cdom/content/CNAbility.java
index bc7ff290d3e..a083b6b9604 100644
--- a/code/src/java/pcgen/cdom/content/CNAbility.java
+++ b/code/src/java/pcgen/cdom/content/CNAbility.java
@@ -38,7 +38,7 @@
 /**
  * An CNAbility represents an "unresolved" (categorized) Ability & Nature.
  */
-public class CNAbility extends ConcretePrereqObject
+public final class CNAbility extends ConcretePrereqObject
 		implements QualifyingObject, Comparable<CNAbility>, ChooseDriver, Reducible
 {
 
diff --git a/code/src/java/pcgen/cdom/helper/CNAbilitySelection.java b/code/src/java/pcgen/cdom/helper/CNAbilitySelection.java
index 654f06d5fc5..141df8191db 100644
--- a/code/src/java/pcgen/cdom/helper/CNAbilitySelection.java
+++ b/code/src/java/pcgen/cdom/helper/CNAbilitySelection.java
@@ -33,7 +33,7 @@
 import pcgen.core.SettingsHandler;
 import pcgen.rules.context.LoadContext;
 
-public class CNAbilitySelection extends ConcretePrereqObject implements QualifyingObject, Reducible
+public final class CNAbilitySelection extends ConcretePrereqObject implements QualifyingObject, Reducible
 {
 
 	private final CNAbility cna;