diff --git a/types/text.yaml b/types/text.yaml
index ba6a816..bdee225 100644
--- a/types/text.yaml
+++ b/types/text.yaml
@@ -959,6 +959,7 @@
   extensions:
   - xml
   - dtd
+  - xsd
   xrefs: !ruby/object:MIME::Types::Container
     rfc:
     - rfc7303