diff --git a/lighttpd.conf b/lighttpd.conf
index 6777605..d6aab86 100644
--- a/lighttpd.conf
+++ b/lighttpd.conf
@@ -228,7 +228,8 @@ mimetype.assign = (
     ".xpm"          =>  "image/x-xpixmap",
     ".xwd"          =>  "image/x-xwindowdump",
     ".zip"          =>  "application/zip",
-
+    ".xz"           =>  "application/x-xz",
+    ".tar.xz"       =>  "application/x-xz-compressed-tar",
 
   # Default MIME type