diff --git a/c3-everything.nix b/c3-everything.nix
index 9de4b1e..9245260 100644
--- a/c3-everything.nix
+++ b/c3-everything.nix
@@ -12,8 +12,12 @@ with pkgs;
       ${oldAttrs.installPhase}
 
       mkdir $out/nix-support
-      for f in $out/*.html ; do
+      echo doc CSS style.css >> $out/nix-support/hydra-build-products
+
+      for f in $out/?.html ; do
         d=`basename $f|sed -e s/.html//`
+        substituteInPlace $f \
+          --replace style.css ../1/style.css
         echo doc Day$d $f >> $out/nix-support/hydra-build-products
       done
     '';