diff --git a/src/java/com/threerings/parlor/game/server/GameManager.java b/src/java/com/threerings/parlor/game/server/GameManager.java
index f8433d95..33b0e0c4 100644
--- a/src/java/com/threerings/parlor/game/server/GameManager.java
+++ b/src/java/com/threerings/parlor/game/server/GameManager.java
@@ -374,6 +374,16 @@ public class GameManager extends PlaceManager
         return (_gameobj == null) ? -1 : _gameobj.getPlayerIndex(username);
     }
 
+    /**
+     * Is the specified oid that of a player in this game?
+     */
+    public int getPlayerIndex (int bodyOid)
+    {
+        return (_playerOids == null)
+            ? -1
+            : IntListUtil.indexOf(_playerOids, bodyOid);
+    }
+
     /**
      * Returns the user object oid of the player with the specified index.
      */