diff --git a/default_conf.py b/default_conf.py
index e99b9ef..579e7a3 100644
--- a/default_conf.py
+++ b/default_conf.py
@@ -53,7 +53,7 @@ icon_path = '%s/%s' % (os.path.basename(resources_path[0]), 'icon')
 css_path = ['%s/%s/%s' % (os.path.basename(resources_path[0]), 'css', 'iwla.css')]
 
 # Files extensions to compress in gzip during display build
-compress_output_files = []
+compress_output_files = ['html', 'css', 'js']
 
 # Path to locales files
 locales_path = './locales'