diff --git a/libnotificationmanager/notifications.cpp b/libnotificationmanager/notifications.cpp
--- a/libnotificationmanager/notifications.cpp
+++ b/libnotificationmanager/notifications.cpp
@@ -647,6 +647,27 @@
 
 void Notifications::expire(const QModelIndex &idx)
 {
+    if (idx.data(Notifications::ExpiredRole).toBool()) {
+        return;
+    }
+
+    if (Private::isGroup(idx)) {
+        const QModelIndex groupIdx = Utils::mapToModel(idx, d->groupingModel);
+        if (!groupIdx.isValid()) {
+            qCWarning(NOTIFICATIONMANAGER) << "Cannot expire: Failed to find group model index for this item";
+            return;
+        }
+
+        Q_ASSERT(groupIdx.model() == d->groupingModel);
+
+        const int childCount = d->groupingModel->rowCount(groupIdx);
+        for (int i = childCount - 1; i >= 0; --i) {
+            const QModelIndex childIdx = d->groupingModel->index(i, 0, groupIdx);
+            expire(childIdx);
+        }
+        return;
+    }
+
     switch (static_cast<Notifications::Type>(idx.data(Notifications::TypeRole).toInt())) {
     case Notifications::NotificationType:
         d->notificationsModel->expire(Private::notificationId(idx));