diff --git a/changelog.d/1673.bugfix b/changelog.d/1673.bugfix
new file mode 100644
index 00000000000..b0459f34b85
--- /dev/null
+++ b/changelog.d/1673.bugfix
@@ -0,0 +1 @@
+Avoid resending notifications that are already shown
diff --git a/vector/src/main/java/im/vector/app/features/notifications/NotificationDrawerManager.kt b/vector/src/main/java/im/vector/app/features/notifications/NotificationDrawerManager.kt
index 37ed1e654ad..fd15455391a 100644
--- a/vector/src/main/java/im/vector/app/features/notifications/NotificationDrawerManager.kt
+++ b/vector/src/main/java/im/vector/app/features/notifications/NotificationDrawerManager.kt
@@ -457,7 +457,7 @@ class NotificationDrawerManager @Inject constructor(private val context: Context
 
             if (eventList.isEmpty() || eventList.all { it.isRedacted }) {
                 notificationUtils.cancelNotificationMessage(null, SUMMARY_NOTIFICATION_ID)
-            } else {
+            } else if (hasNewEvent) {
                 // FIXME roomIdToEventMap.size is not correct, this is the number of rooms
                 val nbEvents = roomIdToEventMap.size + simpleEvents.size
                 val sumTitle = stringProvider.getQuantityString(R.plurals.notification_compat_summary_title, nbEvents, nbEvents)