diff --git a/static/js/portico/confirm-preregistrationuser.js b/static/js/portico/confirm-preregistrationuser.js
new file mode 100644
index 0000000000..3157eaa76e
--- /dev/null
+++ b/static/js/portico/confirm-preregistrationuser.js
@@ -0,0 +1,3 @@
+$(function () {
+    $("#register").submit();
+});
diff --git a/templates/confirmation/confirm_preregistrationuser.html b/templates/confirmation/confirm_preregistrationuser.html
index ca71796334..1ee3eb5bea 100644
--- a/templates/confirmation/confirm_preregistrationuser.html
+++ b/templates/confirmation/confirm_preregistrationuser.html
@@ -1,5 +1,10 @@
 {% extends "zerver/base.html" %}
 
+{% block customhead %}
+{{ super() }}
+{{ render_bundle('confirm-preregistrationuser') }}
+{% endblock %}
+
 {% block content %}
 
 {#
@@ -15,9 +20,4 @@ post to another view which executes in our code to produce the desired form.
     <input type="hidden" value="{% if full_name %}{{ full_name }}{% endif %}" name="full_name"/>
 </form>
 
-<script>
-    $(function () {
-        $("#register").submit();
-    });
-</script>
 {% endblock %}
diff --git a/tools/webpack.assets.json b/tools/webpack.assets.json
index 30894a5e3a..5aac1c8db0 100644
--- a/tools/webpack.assets.json
+++ b/tools/webpack.assets.json
@@ -61,6 +61,9 @@
         "jquery-validation/dist/jquery.validate.min.js",
         "./static/js/portico/signup.js"
     ],
+    "confirm-preregistrationuser": [
+        "./static/js/portico/confirm-preregistrationuser.js"
+    ],
     "support": [
         "./static/js/analytics/support.js",
         "./static/styles/app_components.scss"