diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index a2a790a0..ceb126cc 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -756,6 +756,7 @@ Lua:
   primary_extension: .lua
   extensions:
   - .nse
+  - .rbxs
 
 M:
   type: programming