diff --git a/Rakefile b/Rakefile
index a8192d8..f730f86 100644
--- a/Rakefile
+++ b/Rakefile
@@ -150,8 +150,7 @@ task :update_source, :theme do |t, args|
   puts "moved #{source_dir} into #{source_dir}.old/"
   system "mkdir -p #{source_dir}; cp -R #{themes_dir}/"+theme+"/source/. #{source_dir}"
   system "cp -Rn #{source_dir}.old/. #{source_dir}"
-  system "cp -f #{source_dir}.old/_includes/navigation.html #{source_dir}/_includes/navigation.html"
-  system "cp -f #{source_dir}.old/_includes/footer.html #{source_dir}/_includes/footer.html"
+  system "cp -Rf #{source_dir}.old/_includes/custom/. #{source_dir}/_includes/custom/"
   puts "## Updated #{source_dir} ##"
 end