diff --git a/files/config/mime.types b/files/config/mime.types
index 89be9a4cd636241f8fb4b06942f106bd3b9fff16..176b6c5fc6ceaf854b981612d6bee19ffe23e328 100644
--- a/files/config/mime.types
+++ b/files/config/mime.types
@@ -5,7 +5,7 @@ types {
     text/xml                              xml;
     image/gif                             gif;
     image/jpeg                            jpeg jpg;
-    application/javascript                js;
+    application/javascript                js mjs;
     application/atom+xml                  atom;
     application/rss+xml                   rss;