diff --git a/SC2321.md b/SC2321.md
index b965b9c..43a929a 100644
--- a/SC2321.md
+++ b/SC2321.md
@@ -1,4 +1,4 @@
-## Array indices are already arithmetic contexts. Prefer removing the $(( and )).
+## Array indices are already arithmetic contexts. Prefer removing the `$((` and `))`.
 
 ### Problematic code: