diff --git a/src/as/com/threerings/ezgame/data/PropertySetEvent.as b/src/as/com/threerings/ezgame/data/PropertySetEvent.as
index 178918aa..b9943c73 100644
--- a/src/as/com/threerings/ezgame/data/PropertySetEvent.as
+++ b/src/as/com/threerings/ezgame/data/PropertySetEvent.as
@@ -10,6 +10,8 @@ import com.threerings.io.ObjectInputStream;
 import com.threerings.io.ObjectOutputStream;
 import com.threerings.io.Streamer;
 
+import com.threerings.util.StringBuilder;
+
 import com.threerings.presents.dobj.DObject;
 import com.threerings.presents.dobj.NamedEvent;
 
@@ -84,6 +86,13 @@ public class PropertySetEvent extends NamedEvent
         }
     }
 
+    override protected function toStringBuf (buf :StringBuilder) :void
+    {
+        buf.append("PropertySetEvent ");
+        super.toStringBuf(buf);
+        buf.append(", index=").append(_index);
+    }
+
     /** The index of the property, if applicable. */
     protected var _index :int;
 
diff --git a/src/java/com/threerings/ezgame/data/PropertySetEvent.java b/src/java/com/threerings/ezgame/data/PropertySetEvent.java
index 7170a6eb..92adcafd 100644
--- a/src/java/com/threerings/ezgame/data/PropertySetEvent.java
+++ b/src/java/com/threerings/ezgame/data/PropertySetEvent.java
@@ -80,6 +80,14 @@ public class PropertySetEvent extends NamedEvent
         }
     }
 
+    @Override
+    protected void toString (StringBuilder buf)
+    {
+        buf.append("PropertySetEvent ");
+        super.toString(buf);
+        buf.append(", index=").append(_index);
+    }
+
     /** The index of the property, if applicable. */
     protected int _index;