diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 14519a61..d5646305 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3591,6 +3591,13 @@ Unity3D Asset:
   - .unity
   tm_scope: source.yaml
 
+Uno:
+  type: programming
+  extensions:
+  - .uno
+  ace_mode: csharp
+  tm_scope: source.cs
+
 UnrealScript:
   type: programming
   color: "#a54c4d"