diff --git a/re/sniffer/sniffermodel.cpp b/re/sniffer/sniffermodel.cpp
index 55736b4..293a69d 100644
--- a/re/sniffer/sniffermodel.cpp
+++ b/re/sniffer/sniffermodel.cpp
@@ -137,7 +137,7 @@ QVariant SnifferModel::data(const QModelIndex &index, int role) const
 Qt::ItemFlags SnifferModel::flags(const QModelIndex &index) const
 {
     if (!index.isValid())
-        return 0;
+        return Qt::NoItemFlags;
 
     return QAbstractItemModel::flags(index);
 }