diff --git a/SC2278.md b/SC2278.md
index 89e4b50..21cd45c 100644
--- a/SC2278.md
+++ b/SC2278.md
@@ -1,4 +1,4 @@
-## $0 can't be assigned in Ksh (but it does reflect the current function).
+## `$0` can't be assigned in Ksh (but it does reflect the current function).
 
 ### Problematic code: