diff --git a/frontend/src/components/Calendar/CalendarEventPanel.vue b/frontend/src/components/Calendar/CalendarEventPanel.vue
index 98af243e..f767eccd 100644
--- a/frontend/src/components/Calendar/CalendarEventPanel.vue
+++ b/frontend/src/components/Calendar/CalendarEventPanel.vue
@@ -533,6 +533,8 @@ function updateTime(t, fromTime = false) {
 }
 
 function saveEvent() {
+  if (!dirty.value) return
+
   error.value = null
   if (!_event.value.title) {
     error.value = __('Title is required')