diff --git a/site/layouts/partials/footer.html b/site/layouts/partials/footer.html
index c7866a3bc..e32a588ae 100644
--- a/site/layouts/partials/footer.html
+++ b/site/layouts/partials/footer.html
@@ -50,4 +50,8 @@ <h3 class="f4 b lh-title mb2 primary">Social media</h3>
 
 {{ partial "svg" . }}
 
-<script src="/app.js"></script>
+
+{{ $app := .Site.Data.webpack.app }}
+{{ with $app.js }}
+<script src="{{ relURL . }}"></script>
+{{ end }}
diff --git a/webpack.common.js b/webpack.common.js
index e1a462df7..c7dc0fb4d 100644
--- a/webpack.common.js
+++ b/webpack.common.js
@@ -9,6 +9,7 @@ module.exports = {
   entry: {
     main: path.join(__dirname, "src", "index.js"),
     cms: path.join(__dirname, "src", "js", "cms.js"),
+    app: path.join(__dirname, "src", "js", "app.js"),
   },
 
   output: {