diff --git a/hosts/hydra/default.nix b/hosts/hydra/default.nix
index 074ad6c4..1b94338f 100644
--- a/hosts/hydra/default.nix
+++ b/hosts/hydra/default.nix
@@ -292,10 +292,12 @@ in
         path = "/root/.ssh/id_ed25519.pub";
       };
       "ssh-keys/updater/private" = {
+        owner = "updater";
         mode = "400";
         path = "/var/lib/updater/.ssh/id_ed25519";
       };
       "ssh-keys/updater/public" = {
+        owner = "updater";
         mode = "440";
         path = "/var/lib/updater/.ssh/id_ed25519.pub";
       };