diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 75ff45598..239c3852a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -165,6 +165,7 @@ effect on highlighting. We will work on improving highlighting in the near futur
 ```
 @variable
 @variable.builtin
+@variable.global
 ```
 
 #### Text