diff --git a/src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp b/src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
index 52934b61592..4ef1891cdbf 100644
--- a/src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
+++ b/src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
@@ -17,10 +17,16 @@ class DateFormatProxyModel : public QIdentityProxyModel
       return QIdentityProxyModel::data(index, role);
 
     const QDateTime dateTime = sourceModel()->data(SourceClass::DateRole).toDateTime();
-
     return dateTime.toString(m_formatString);
   }
 
+  QMap<int, QVariant> itemData(const QModelIndex &proxyIndex) const override
+  {
+      QMap<int, QVariant> map = QIdentityProxyModel::itemData(proxyIndex);
+      map[Qt::DisplayRole] = data(proxyIndex);
+      return map;
+  }
+
 private:
   QString m_formatString;
 };