diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index ba5c0103..f9a038ff 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3536,6 +3536,16 @@ XML:
   - Web.config
   - packages.config
 
+XPages:
+  type: programming
+  extensions:
+  - .xsp
+  - .xsp-config
+  - .xsp-metadata
+  - .form
+  - .view
+  ace_mode: xml
+
 XProc:
   type: programming
   extensions: