diff --git a/README.md b/README.md
index 8358a99..af7834c 100644
--- a/README.md
+++ b/README.md
@@ -93,8 +93,8 @@ struct RigidBody
         
         if ( !atRest )
         {
-            serialize_object( stream, position );
-            serialize_object( stream, orientation );
+            serialize_object( stream, linearVelocity );
+            serialize_object( stream, angularVelocity );
         }
         
         if ( Stream::IsReading && atRest )