diff --git a/node/make.js b/node/make.js
index 00f05eddd..53d92828f 100644
--- a/node/make.js
+++ b/node/make.js
@@ -41,6 +41,8 @@ target.build = function() {
 target.test = async function() {
     target.build();
 
+    process.env['SYSTEM_DEBUG'] = 'true';
+
     await buildutils.getExternalsAsync();
     run('tsc -p ./test');
     cp('-Rf', rp('test/scripts'), testPath);