diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index a16b7437..91cf90eb 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1247,6 +1247,7 @@ XML:
   - .rss
   - .scxml
   - .svg
+  - .tml
   - .vxml
   - .wsdl
   - .wxi