diff --git a/h5bp/web_performance/compression.conf b/h5bp/web_performance/compression.conf
index 8cc7d90..b9026ca 100644
--- a/h5bp/web_performance/compression.conf
+++ b/h5bp/web_performance/compression.conf
@@ -39,6 +39,7 @@ gzip_types
   application/atom+xml
   application/geo+json
   application/javascript
+  application/x-javascript
   application/json
   application/ld+json
   application/manifest+json
@@ -58,6 +59,7 @@ gzip_types
   text/javascript
   text/markdown
   text/plain
+  text/xml
   text/vcard
   text/vnd.rim.location.xloc
   text/vtt