diff --git a/models/site.rb b/models/site.rb
index f7fd2ba5..e7703535 100644
--- a/models/site.rb
+++ b/models/site.rb
@@ -721,10 +721,12 @@ class Site < Sequel::Model
 
     Zip::Archive.open(tmpfile.path, Zip::CREATE) do |ar|
       ar.add_dir(zip_name)
+    end
 
-      Dir.glob("#{base_files_path}/**/*").each do |path|
-        relative_path = path.gsub(base_files_path+'/', '')
+    Dir.glob("#{base_files_path}/**/*").each do |path|
+      relative_path = path.gsub(base_files_path+'/', '')
 
+      Zip::Archive.open(tmpfile.path, Zip::CREATE) do |ar|
         if File.directory?(path)
           ar.add_dir(zip_name+'/'+relative_path)
         else