diff --git a/nixos/modules/services/web-apps/sogo.nix b/nixos/modules/services/web-apps/sogo.nix
index f5123abd7443..e268e3ec4a3b 100644
--- a/nixos/modules/services/web-apps/sogo.nix
+++ b/nixos/modules/services/web-apps/sogo.nix
@@ -151,16 +151,15 @@ in
       description = "SOGo tmpwatch";
 
       startAt = [ "hourly" ];
-      script = ''
-        SOGOSPOOL=/var/lib/sogo/spool
-
-        find "$SOGOSPOOL" -type f -user sogo -atime +23 -delete > /dev/null
-        find "$SOGOSPOOL" -mindepth 1 -type d -user sogo -empty -delete > /dev/null
-      '';
 
       serviceConfig = {
         Type = "oneshot";
 
+        ExecStart = [
+          "find /var/lib/sogo/spool -type f -user sogo -atime +23 -delete"
+          "find /var/lib/sogo/spool -mindepth 1 -type d -user sogo -empty -delete"
+        ];
+
         ProtectSystem = "strict";
         ProtectHome = true;
         PrivateTmp = true;