diff --git a/core/src/main/java/com/threerings/util/StreamablePoint.java b/core/src/main/java/com/threerings/util/StreamablePoint.java
index ddd0fd038..16faae2b7 100644
--- a/core/src/main/java/com/threerings/util/StreamablePoint.java
+++ b/core/src/main/java/com/threerings/util/StreamablePoint.java
@@ -7,6 +7,10 @@ package com.threerings.util;
 
 import java.awt.Point;
 
+import java.io.IOException;
+
+import com.threerings.io.ObjectInputStream;
+import com.threerings.io.ObjectOutputStream;
 import com.threerings.io.Streamable;
 
 /**
@@ -31,4 +35,21 @@ public class StreamablePoint extends Point
     {
         super(p);
     }
+
+    /**
+     * Writes our custom streamable fields.
+     */
+    public void writeObject (ObjectOutputStream out) throws IOException
+    {
+        out.writeInt(x);
+        out.writeInt(y);
+    }
+
+    /**
+     * Reads our custom streamable fields.
+     */
+    public void readObject (ObjectInputStream in) throws IOException, ClassNotFoundException
+    {
+        setLocation(in.readInt(), in.readInt());
+    }
 }
diff --git a/core/src/main/java/com/threerings/util/StreamableRectangle.java b/core/src/main/java/com/threerings/util/StreamableRectangle.java
index 2f5d02192..55c42d260 100644
--- a/core/src/main/java/com/threerings/util/StreamableRectangle.java
+++ b/core/src/main/java/com/threerings/util/StreamableRectangle.java
@@ -7,6 +7,10 @@ package com.threerings.util;
 
 import java.awt.Rectangle;
 
+import java.io.IOException;
+
+import com.threerings.io.ObjectInputStream;
+import com.threerings.io.ObjectOutputStream;
 import com.threerings.io.Streamable;
 
 /**
@@ -37,4 +41,23 @@ public class StreamableRectangle extends Rectangle
     public StreamableRectangle ()
     {
     }
+
+    /**
+     * Writes our custom streamable fields.
+     */
+    public void writeObject (ObjectOutputStream out) throws IOException
+    {
+        out.writeInt(x);
+        out.writeInt(y);
+        out.writeInt(width);
+        out.writeInt(height);
+    }
+
+    /**
+     * Reads our custom streamable fields.
+     */
+    public void readObject (ObjectInputStream in) throws IOException, ClassNotFoundException
+    {
+        setBounds(in.readInt(), in.readInt(), in.readInt(), in.readInt());
+    }
 }