diff --git a/nixos/modules/services/backup/restic.nix b/nixos/modules/services/backup/restic.nix
index c95f7cb16713..b7d6424fe424 100644
--- a/nixos/modules/services/backup/restic.nix
+++ b/nixos/modules/services/backup/restic.nix
@@ -505,6 +505,7 @@ in
       lib.nameValuePair "restic-backups-${name}" {
         wantedBy = [ "timers.target" ];
         inherit (backup) timerConfig;
+        unitConfig.X-OnlyManualStart = true;
       }
     ) (lib.filterAttrs (_: backup: backup.timerConfig != null) config.services.restic.backups);