diff --git a/manifests/init.pp b/manifests/init.pp
index 3ceb609..8d8e50b 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -200,6 +200,8 @@ class mastodon (
     group       => $mastodon_group,
     environment => [
       "HOME=${mastodon_home}",
+      'LANG=C.UTF-8',
+      "USER=${mastodon_user}",
     ],
     creates     => "${mastodon_home}/./.mastodon_install",
     path        => "${mastodon_home}/.rbenv/shims:${mastodon_home}/.rbenv/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",