diff --git a/rollup.config.js b/rollup.config.js
index 39babdad5c..19b15f13d2 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -42,7 +42,7 @@ async function main()
 
     const plugins = [
         rename(),
-        jscc({ values: { _VERSION: repo.version } }),
+        jscc({ values: { _VERSION: repo.version, _DEBUG: true } }),
         esbuild({ target: moduleTarget }),
         ...commonPlugins
     ];