diff --git a/site/layouts/partials/action.html b/site/layouts/partials/action.html
index f7226d2..1dc820d 100644
--- a/site/layouts/partials/action.html
+++ b/site/layouts/partials/action.html
@@ -9,6 +9,7 @@
                 <p>{{ (replace (replace .Site.Params.action.description "$ORGS" (partial "functions/count_organisations.html" .) ) "$INDS" (partial "functions/count_signatures.html" .))  | markdownify }}</p>
                 
                 <form action="https://forms.fsfe.org/email" method="post">
+                  <input name="appid" type="hidden" value="pmpc-sign" />
                   <label class="sign-input form-na">
                     <input name="name" placeholder="{{ .Site.Params.action.formName }}" type="text" required />
                   </label>