1 files changed, 1 insertions, 2 deletions

diff --git a/deep_test/deep_test.cpp b/deep_test/deep_test.cpp
index bbae48e..d7ecd33 100644
--- a/deep_test/deep_test.cpp
+++ b/deep_test/deep_test.cpp
@@ -8,9 +8,8 @@
 // ################################################################################################
 
 // a lanes-deep userdata. needs DeepPrelude and luaG_newdeepuserdata from Lanes code.
-struct MyDeepUserdata
+struct MyDeepUserdata : public DeepPrelude // Deep userdata MUST start with a DeepPrelude
 {
-        DeepPrelude prelude; // Deep userdata MUST start with this header
         lua_Integer val{ 0 };
 };