diff --git a/systems/x86_64-linux/sgx/mail.nix b/systems/x86_64-linux/sgx/mail.nix
index 0463ea6..289bac2 100644
--- a/systems/x86_64-linux/sgx/mail.nix
+++ b/systems/x86_64-linux/sgx/mail.nix
@@ -7,7 +7,7 @@
 
   services.postfix = {
     enable = true;
-    setting.main = {
+    settings.main = {
       relayhost = [ "[smtp.gmail.com]:587" ];
       smtp_use_tls = "yes";
       smtp_sasl_auth_enable = "yes";