diff --git a/docs/default.nix b/docs/default.nix
index 0380e89f..755bddde 100644
--- a/docs/default.nix
+++ b/docs/default.nix
@@ -2,20 +2,19 @@
 , modules-docs
 , stdenv
 , lib
-, mdbook-pagetoc
 }:
 with lib;
 stdenv.mkDerivation {
   name = "devshell-docs";
-  buildInputs = [ mdbook mdbook-pagetoc ];
+  buildInputs = [ mdbook ];
   src =
     let fs = lib.fileset; in
     fs.toSource {
       root = ./.;
       fileset = fs.unions [
-        (fs.fileFilter (file: file.hasExt "md") ./.)
+        (fs.fileFilter (file: file.hasExt "md") ./src)
+        (fs.fileFilter (file: true) ./theme)
         ./book.toml
-        ./theme/pagetoc-tweaks.css
       ];
     };