diff --git a/docs/default.nix b/docs/default.nix
index e17db0822c..9777260e58 100644
--- a/docs/default.nix
+++ b/docs/default.nix
@@ -1,5 +1,5 @@
 {
-  pkgs ? import <nixpkgs> { config.enableUnfree = true; },
+  pkgs ? import <nixpkgs> { config.allowUnfree = true; },
   nuschtosSearch,
 }:
 let