diff --git a/src/main/java/com/threerings/stage/data/StageOccupantInfo.java b/src/main/java/com/threerings/stage/data/StageOccupantInfo.java
index 1e2af4ad..b2eed810 100644
--- a/src/main/java/com/threerings/stage/data/StageOccupantInfo.java
+++ b/src/main/java/com/threerings/stage/data/StageOccupantInfo.java
@@ -35,6 +35,11 @@ public class StageOccupantInfo extends OccupantInfo
         super(body);
     }
 
+    /** Used for unserialization. */
+    public StageOccupantInfo ()
+    {
+    }
+
     /**
      * Should return true if the occupant in question is available to be
      * clustered with, false if they are "busy". This means that a user