diff --git a/system/bookmarks/default.nix b/system/bookmarks/default.nix
new file mode 100644
index 00000000..749cee0b
--- /dev/null
+++ b/system/bookmarks/default.nix
@@ -0,0 +1,10 @@
+{
+  runCommand,
+  emacs,
+}:
+runCommand "bookmarks" {} ''
+  mkdir $out
+  cp ${./default.org} $out/bookmarks.org
+  cp ${./stylesheet.css} $out/stylesheet.css
+  ${emacs}/bin/emacs -Q $out/bookmarks.org --batch --eval="(cd \"$out\")" -f pwd -f org-html-export-to-html --kill
+''
diff --git a/system/firefox.nix b/system/firefox.nix
index 372800b0..45de3b36 100644
--- a/system/firefox.nix
+++ b/system/firefox.nix
@@ -81,11 +81,7 @@
       Homepage = {
         Locked = true;
         StartPage = "homepage-locked";
-        URL = "file://${pkgs.runCommand "bookmarks" {} ''
-          mkdir $out
-          cp ${./bookmarks/default.org} $out/bookmarks.org
-          ${pkgs.emacs}/bin/emacs -Q $out/bookmarks.org --batch --eval="(cd \"$out\")" -f pwd -f org-html-export-to-html --kill
-        ''}/bookmarks.html";
+        URL = "file://${(pkgs.callPackage ./bookmarks/default.nix {})}/bookmarks.html";
       };
       NewTabPage = true;
       NoDefaultBookmarks = true;