diff --git a/.woodpecker.yml b/.woodpecker.yml
index 807fab9..3c7fbb2 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -1,6 +1,8 @@
 pipeline:
   nix:
     image: nixos/nix
+    environment:
+      - NIX_CONFIG="experimental-features = nix-command flakes"
     commands:
       - nix flake check
       - nix build '.#mdbook-toc'