diff --git a/src/java/com/threerings/parlor/game/server/GameManager.java b/src/java/com/threerings/parlor/game/server/GameManager.java
index c73e4834..3b52a40f 100644
--- a/src/java/com/threerings/parlor/game/server/GameManager.java
+++ b/src/java/com/threerings/parlor/game/server/GameManager.java
@@ -36,9 +36,9 @@ import com.threerings.util.MessageBundle;
 import com.threerings.util.Name;
 
 import com.threerings.presents.data.ClientObject;
-import com.threerings.presents.dobj.AttributeChangeListener;
 import com.threerings.presents.dobj.AttributeChangedEvent;
 import com.threerings.presents.dobj.DObject;
+import com.threerings.presents.dobj.NamedAttributeListener;
 
 import com.threerings.crowd.chat.server.SpeakUtil;
 import com.threerings.crowd.data.BodyObject;
@@ -1334,12 +1334,11 @@ public class GameManager extends PlaceManager
     }
 
     /** Listens for game state changes. */
-    protected AttributeChangeListener _stateListener = new AttributeChangeListener() {
-        public void attributeChanged (AttributeChangedEvent event) {
-            if (event.getName().equals(GameObject.STATE)) {
-                stateDidChange(_committedState = event.getIntValue(),
-                               ((Integer)event.getOldValue()).intValue());
-            }
+    protected NamedAttributeListener _stateListener = new NamedAttributeListener(GameObject.STATE) {
+        @Override
+        public void namedAttributeChanged (AttributeChangedEvent event) {
+            stateDidChange(_committedState = event.getIntValue(),
+                           ((Integer)event.getOldValue()).intValue());
         }
     };
 
diff --git a/src/java/com/threerings/puzzle/client/PuzzleController.java b/src/java/com/threerings/puzzle/client/PuzzleController.java
index f6c2d516..e1026caa 100644
--- a/src/java/com/threerings/puzzle/client/PuzzleController.java
+++ b/src/java/com/threerings/puzzle/client/PuzzleController.java
@@ -42,6 +42,7 @@ import com.threerings.presents.dobj.AttributeChangeListener;
 import com.threerings.presents.dobj.AttributeChangedEvent;
 import com.threerings.presents.dobj.ElementUpdateListener;
 import com.threerings.presents.dobj.ElementUpdatedEvent;
+import com.threerings.presents.dobj.NamedAttributeListener;
 
 import com.threerings.crowd.client.PlaceControllerDelegate;
 import com.threerings.crowd.data.PlaceObject;
@@ -868,12 +869,10 @@ public abstract class PuzzleController extends GameController
     };
 
     /** Listens for various attribute changes. */
-    protected AttributeChangeListener _mlist = new AttributeChangeListener() {
-        public void attributeChanged (AttributeChangedEvent event) {
-            String name = event.getName();
-            if (name.equals(PuzzleObject.SEED)) {
-                generateNewBoard();
-            }
+    protected AttributeChangeListener _mlist = new NamedAttributeListener(PuzzleObject.SEED) {
+        @Override
+        public void namedAttributeChanged (AttributeChangedEvent event) {
+            generateNewBoard();
         }
     };