diff --git a/hosts/gitea/default.nix b/hosts/gitea/default.nix
index b4cccd03..f7f2f7d7 100644
--- a/hosts/gitea/default.nix
+++ b/hosts/gitea/default.nix
@@ -54,7 +54,7 @@
         mailer = {
           ENABLED = true;
           FROM = "gitea@c3d2.de";
-          MAILER_TYPE = "sendmail";
+          PROTOCOL = "sendmail";
           SENDMAIL_PATH = "/run/wrappers/bin/sendmail";
           SENDMAIL_ARGS = "--";
         };