diff --git a/SC3040.md b/SC3040.md
index 97f14db..5c80d86 100644
--- a/SC3040.md
+++ b/SC3040.md
@@ -3,6 +3,9 @@
 This applies to any POSIX code: `set -o <option>` is **undefined**.
 
 Examples follow:
+
+----
+
 ### Problematic code:
 
 ```sh