diff --git a/util/BUILD.gn b/util/BUILD.gn
index de89adf239600b75ff49d39acff98d7c2017143e..bf9ce577e1f326d39f1b6d402165135dd308daed 100755
--- a/util/BUILD.gn
+++ b/util/BUILD.gn
@@ -54,6 +54,7 @@ action("gen_util_abc") {
     rebase_path("${ts2abc_build_path}"),
     "--node-modules",
     rebase_path("${node_modules}"),
+    "--module",
   ]
   deps = [
     ":build_ts_js",