1 files changed, 1 insertions, 0 deletions
diff --git a/src/lstate.js b/src/lstate.js
index d09bebd..db046dc 100644
--- a/src/lstate.js
+++ b/src/lstate.js
@@ -74,6 +74,7 @@ class global_State {
 
     constructor() {
         this.id_counter = 0; /* used to give objects unique ids */
+        this.ids = new WeakMap();
 
         this.mainthread = null;
         this.l_registry = new lobject.TValue(CT.LUA_TNIL, null);