diff --git a/nummi/main/static/main/css/plot.css b/nummi/main/static/main/css/plot.css
index c568d3d..dcf1771 100644
--- a/nummi/main/static/main/css/plot.css
+++ b/nummi/main/static/main/css/plot.css
@@ -84,6 +84,8 @@ table.full-width col.bar {
 }
 
 .calendar {
+  overflow-x: auto;
+
   margin-top: var(--gap);
   font-feature-settings: var(--num);