diff --git a/src/panels/calendar/dialog-calendar-event-detail.ts b/src/panels/calendar/dialog-calendar-event-detail.ts
index 9d333f4cc5..7a76647e1b 100644
--- a/src/panels/calendar/dialog-calendar-event-detail.ts
+++ b/src/panels/calendar/dialog-calendar-event-detail.ts
@@ -271,6 +271,7 @@ class DialogCalendarEventDetail extends LitElement {
           color: var(--secondary-text-color);
           max-width: 300px;
           overflow-wrap: break-word;
+          white-space: pre-line;
         }
       `,
     ];