diff --git a/nix/infra/default.nix b/nix/infra/default.nix
index cf41487..e4c37f3 100644
--- a/nix/infra/default.nix
+++ b/nix/infra/default.nix
@@ -14,6 +14,7 @@
     ./nix.nix
     ./system.nix
     ./disk.nix
+    ./backend.nix
     ./users
   ];