diff --git a/modules/programs/ssmtp.nix b/modules/programs/ssmtp.nix
index abff4e707a0..d8a324190f6 100644
--- a/modules/programs/ssmtp.nix
+++ b/modules/programs/ssmtp.nix
@@ -74,7 +74,7 @@ let
       authPass = mkOption {
         default = "";
         example = "correctHorseBatteryStaple";
-        default = "
+        description = "
           Password used for SMTP auth.
         ";
       };