diff --git a/package.json b/package.json
index 38bf304..cab4501 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
-    "holyc": "0.0.12",
+    "holyc": "0.0.16",
+    "holycjs": "0.0.2",
     "html-webpack-plugin": "^3.2.0",
     "http-server": "^0.11.1",
     "webpack": "^4.8.3",
diff --git a/src/add.c b/src/add.c
index 0a78cb7..75254e6 100644
--- a/src/add.c
+++ b/src/add.c
@@ -1,3 +1,10 @@
-int add(int l, int r) {
+#include <webassembly.h>
+#include <webassembly/console.h>
+
+export void test() {
+  console_log("test");
+}
+
+export int add(int l, int r) {
   return l + r;
 }
diff --git a/src/index.js b/src/index.js
index d27c8fa..dd6d2b1 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,3 +1,9 @@
-import("./add.c").then(({add}) => {
+const {init} = require("holycjs");
+
+import("./add.c").then(({add, test, memory}) => {
+  init(memory);
+
   document.body.innerHTML = "1+1=" + add(1, 1);
+
+  test();
 });