diff --git a/nixos/modules/services/misc/sssd.nix b/nixos/modules/services/misc/sssd.nix
index 05351a040916..4658f01ff5ac 100644
--- a/nixos/modules/services/misc/sssd.nix
+++ b/nixos/modules/services/misc/sssd.nix
@@ -208,8 +208,7 @@ in
         description = "SSSD Kerberos Cache Manager";
         requires = [ "sssd-kcm.socket" ];
         serviceConfig = {
-          ExecStartPre = "-${pkgs.sssd}/bin/sssd --genconf-section=kcm";
-          ExecStart = "${pkgs.sssd}/libexec/sssd/sssd_kcm --uid 0 --gid 0";
+          ExecStart = "${pkgs.sssd}/libexec/sssd/sssd_kcm";
           CapabilityBoundingSet = [
             "CAP_IPC_LOCK"
             "CAP_CHOWN"