diff --git a/.drone.yml b/.drone.yml
index 41cf5a4..1357b76 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,7 +9,7 @@ steps:
     commands:
       - mkdir -p ~/.config/nixpkgs
       - echo '{ allowUnfree = true; }' > ~/.config/nixpkgs/config.nix
-      - cachix use xe
+      - USER=root cachix use xe
       - cd book && nix-build
       - cp $(readlink result) /lewa/result/docker.tgz
     volumes: