diff --git a/build.sh b/build.sh
index 7aef08f..d1ccc60 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,6 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
+cargo build
 pug index.pug
 set -ex
 wasm-pack build --target web