diff --git a/templates/conf.d/nginx.conf.erb b/templates/conf.d/nginx.conf.erb
index ccf8fc1..f239d9f 100644
--- a/templates/conf.d/nginx.conf.erb
+++ b/templates/conf.d/nginx.conf.erb
@@ -74,7 +74,9 @@ http {
 <% if @gzip_proxied -%>
   gzip_proxied      <%= @gzip_proxied %>;
 <% end -%>
+<% if @gzip_types -%>
   gzip_types        <%= @gzip_types.kind_of?(Array) ? @gzip_types.join(' ') : @gzip_types %>;
+<% end -%>
   gzip_vary         <%= @gzip_vary %>;
 <% end -%>