diff --git a/multi-monitors-add-on@spin83/stylesheet.css b/multi-monitors-add-on@spin83/stylesheet.css
index b1d20c5..096a2fc 100644
--- a/multi-monitors-add-on@spin83/stylesheet.css
+++ b/multi-monitors-add-on@spin83/stylesheet.css
@@ -27,3 +27,7 @@
 .workspace-thumbnails-left:rtl {
     border-radius: 9px 0 0 9px; 
 }
+
+.datemenu-calendar-column {
+    width: 320px;
+}