diff --git a/cover A4.tex b/cover A4.tex
index 679f003..bf43124 100644
--- a/cover A4.tex	
+++ b/cover A4.tex	
@@ -1,4 +1,4 @@
-\documentclass[10pt,A4paper,landscape]{article}
+\documentclass[10pt,a4paper,landscape]{article}
 
 % Packages
 \usepackage[utf8]{inputenc}