diff --git a/tools/skeleton/sequence/E1.tex b/tools/skeleton/sequence/E1.tex
index ad977e4..c6c99ea 100755
--- a/tools/skeleton/sequence/E1.tex
+++ b/tools/skeleton/sequence/E1.tex
@@ -1,5 +1,5 @@
 \documentclass[a4paper,10pt]{article}
-\usepackage{myXsym}
+\usepackage{myXsim}
 
 \author{\Var{ author }}
 \title{\Var{title} - Cours}