diff --git a/frontend/less/espo/misc/fullcalendar/fullcalendar.less b/frontend/less/espo/misc/fullcalendar/fullcalendar.less
index 249e3cdbd8..5497f37e17 100644
--- a/frontend/less/espo/misc/fullcalendar/fullcalendar.less
+++ b/frontend/less/espo/misc/fullcalendar/fullcalendar.less
@@ -95,6 +95,10 @@
     }
 }
 
+.fc.fc-unthemed {
+    overflow: hidden;
+}
+
 .fc-unthemed .fc-time-grid .fc-slats .fc-minor td {
     //border-top-style: dashed;
     border-top-style: none;