diff --git a/ChroniquesOubliees/co.html b/ChroniquesOubliees/co.html
index fe4faf9546..a047ff8a63 100644
--- a/ChroniquesOubliees/co.html
+++ b/ChroniquesOubliees/co.html
@@ -1103,7 +1103,7 @@
 <!-- FIN TEMPLATES -->
 <!-- **** SCRIPTS / SHEET WORKERS -->
 <script type="text/worker">
-('sheet:opened', function() {
+  on('sheet:opened', function() {
     // **** Gestion transition de version
     getAttrs(["version"], function(values) {
       var verfdp = parseFloat(values.version) || 0;