diff --git a/src/as/com/threerings/util/ObjectMarshaller.as b/src/as/com/threerings/util/ObjectMarshaller.as
index 64805fdcb..4cab24ff3 100644
--- a/src/as/com/threerings/util/ObjectMarshaller.as
+++ b/src/as/com/threerings/util/ObjectMarshaller.as
@@ -191,9 +191,9 @@ public class ObjectMarshaller
      */
     private static function staticInit () :void
     {
-        registerClassAlias("Point", Point);
-        registerClassAlias("Rectangle", Rectangle);
-        registerClassAlias("Dictionary", Dictionary);
+        registerClassAlias("P", Point);
+        registerClassAlias("R", Rectangle);
+        registerClassAlias("D", Dictionary);
     }
     staticInit();