diff --git a/nixbld-etc-nixos/configuration.nix b/nixbld-etc-nixos/configuration.nix
index 30df87f2..4d0d6d28 100644
--- a/nixbld-etc-nixos/configuration.nix
+++ b/nixbld-etc-nixos/configuration.nix
@@ -397,6 +397,7 @@ in
 
   nix.extraOptions = ''
     secret-key-files = /etc/nixos/secret/nixbld.m-labs.hk-1
+    experimental-features = nix-command flakes
   '';
   nix.sandboxPaths = ["/opt"];