diff --git a/src/as/com/threerings/io/ObjectInputStream.as b/src/as/com/threerings/io/ObjectInputStream.as
index 366500e14..1c75fdd26 100644
--- a/src/as/com/threerings/io/ObjectInputStream.as
+++ b/src/as/com/threerings/io/ObjectInputStream.as
@@ -29,6 +29,7 @@ import flash.utils.IDataInput;
 
 import com.threerings.util.ClassUtil;
 import com.threerings.util.Log;
+import com.threerings.util.Long;
 
 public class ObjectInputStream
 {
@@ -209,6 +210,13 @@ public class ObjectInputStream
         return _source.readFloat();
     }
 
+    public function readLong () :Long
+    {
+        const result :Long = new Long();
+        readBareObject(result);
+        return result;
+    }
+
     public function readInt () :int
         //throws IOError
     {
diff --git a/src/as/com/threerings/io/ObjectOutputStream.as b/src/as/com/threerings/io/ObjectOutputStream.as
index 85a38ec22..ff9de0ae4 100644
--- a/src/as/com/threerings/io/ObjectOutputStream.as
+++ b/src/as/com/threerings/io/ObjectOutputStream.as
@@ -27,6 +27,7 @@ import flash.utils.IDataOutput;
 import com.threerings.util.ClassUtil;
 import com.threerings.util.HashMap;
 import com.threerings.util.Log;
+import com.threerings.util.Long;
 import com.threerings.util.Short;
 
 public class ObjectOutputStream
@@ -164,6 +165,11 @@ public class ObjectOutputStream
         _targ.writeFloat(value);
     }
 
+    public function writeLong (value :Long) :void
+    {
+        writeBareObject(value);
+    }
+
     public function writeInt (value :int) :void
         //throws IOError
     {
diff --git a/src/as/com/threerings/presents/net/PongResponse.as b/src/as/com/threerings/presents/net/PongResponse.as
index d0fbe8c53..0a5d36ce7 100644
--- a/src/as/com/threerings/presents/net/PongResponse.as
+++ b/src/as/com/threerings/presents/net/PongResponse.as
@@ -56,10 +56,7 @@ public class PongResponse extends DownstreamMessage
         _unpackStamp = getTimer();
         super.readObject(ins);
 
-        // TODO: Figure out how we're really going to cope with longs
-        _packStamp = new Long();
-        ins.readBareObject(_packStamp);
-
+        _packStamp = ins.readLong();
         _processDelay = ins.readInt();
     }