diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index cfc110b4..d68083ea 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -961,6 +961,7 @@ XML:
   type: markup
   primary_extension: .xml
   extensions:
+  - .glade
   - .kml
   - .mxml
   - .plist