diff --git a/modules/services/monitoring/smartd.nix b/modules/services/monitoring/smartd.nix
index fc3626a3048f..154c630e18cf 100644
--- a/modules/services/monitoring/smartd.nix
+++ b/modules/services/monitoring/smartd.nix
@@ -24,7 +24,7 @@ let
 
   smartdConf = pkgs.writeText "smartd.conf" (concatMapStrings (device:
     ''
-      ${device} -m root -M exec ${smartdMail}
+      ${device} -a -m root -M exec ${smartdMail}
     ''
     ) cfg.devices);