diff --git a/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h b/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h
--- a/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h
+++ b/libnotificationmanager/notificationgroupcollapsingproxymodel_p.h
@@ -62,7 +62,7 @@
 
     void invalidateGroupRoles();
 
-    int m_limit;
+    int m_limit = 0;
     QDateTime m_lastRead;
     bool m_expandUnread = false;