diff --git a/libmat2/web.py b/libmat2/web.py
index 0a61908..b05ca3b 100644
--- a/libmat2/web.py
+++ b/libmat2/web.py
@@ -58,7 +58,7 @@ class AbstractHTMLParser(abstract.AbstractParser):
 
 
 class HTMLParser(AbstractHTMLParser):
-    mimetypes = {'text/html', }
+    mimetypes = {'text/html', 'application/xhtml+xml'}
     tags_blocklist = {'meta', }
     tags_required_blocklist = {'title', }