diff --git a/SC2149.md b/SC2149.md
index bd06969..a6baae7 100644
--- a/SC2149.md
+++ b/SC2149.md
@@ -1,4 +1,4 @@
-## Remove $/${} for numeric index, or escape it for string.
+## Remove `$`/`${}` for numeric index, or escape it for string.
 
 ### Problematic code: