diff --git a/js/core/debug-system.js b/js/core/debug-system.js
index f33da3a..1d121c8 100644
--- a/js/core/debug-system.js
+++ b/js/core/debug-system.js
@@ -289,6 +289,3 @@ class MarkitectDebugSystem {
 
 // Initialize and expose globally
 window.MarkitectDebugSystem = new MarkitectDebugSystem();
-
-// ES6 export for bundler
-export { MarkitectDebugSystem };