diff --git a/snippets/alcala.md b/snippets/alcala.md
index d2684692d1687aebfe2c62a0d99b3577f5331937..c28e4c8d7fabed86716bf9740919cd9e3273078e 100644
--- a/snippets/alcala.md
+++ b/snippets/alcala.md
@@ -1,13 +1,9 @@
 ---
 header-includes:
-	\pagestyle{empty}
-	\usepackage{graphicx}
-	\usepackage[left=0cm,top=0cm,right=0cm,nohead,nofoot]{geometry}
-	\geometry{
-        paperwidth=12.3cm,
-        paperheight=3.1cm,
-        margin=0cm
-	}
+	- \pagestyle{empty}
+	- \usepackage{graphicx}
+	- \usepackage[left=0cm,top=0cm,right=0cm,nohead,nofoot]{geometry}
+	- \geometry{paperwidth=12.3cm, paperheight=3.1cm, margin=0cm}
 ---
 
 ```xml