diff --git a/hosts/common/optional/restic-backup.nix b/hosts/common/optional/restic-backup.nix
index 837c47e..d799743 100644
--- a/hosts/common/optional/restic-backup.nix
+++ b/hosts/common/optional/restic-backup.nix
@@ -14,7 +14,7 @@ in {
   sops.secrets = {};
   services.restic.backups = {
     daily = {
-      timer = {
+      timerConfig = {
         OnCalendar = "*-*-* 23:00:00";
         Persistent = true;
         RandomizedDelaySec = "30m";