diff --git a/compiler/main.js b/compiler/main.js
index c999683..7582cc3 100644
--- a/compiler/main.js
+++ b/compiler/main.js
@@ -305,13 +305,6 @@ function filterWorker(workerPath) {
   }
 })();
 
-;(function readSystemModules() {
-  const systemModulesPath = path.resolve(__dirname,'../../api');
-  if (fs.existsSync(systemModulesPath)) {
-    systemModules.push(...fs.readdirSync(systemModulesPath));
-  }
-})();
-
 ;(function readSystemModules() {
   const systemModulesPath = path.resolve(__dirname,'../../api');
   if (fs.existsSync(systemModulesPath)) {