diff --git a/pglab/ConnectionListModel.cpp b/pglab/ConnectionListModel.cpp
index bad449b..e3bff93 100644
--- a/pglab/ConnectionListModel.cpp
+++ b/pglab/ConnectionListModel.cpp
@@ -725,7 +725,17 @@ std::variant<int, QSqlError> ConnectionTreeModel::addGroup(QString group_name)
 		auto err = q.lastError();
 		return { err };
 	}
-	return q.lastInsertId().toInt();
+	auto cg = std::make_shared<ConnectionGroup>();
+	cg->conngroup_id = q.lastInsertId().toInt();
+	cg->name = group_name;
+
+	int row = m_groups.size();
+	beginInsertRows({}, row, row);
+	SCOPE_EXIT { endInsertRows(); };
+	m_groups.push_back(cg);
+	return row;
+}
+
 std::optional<QSqlError> ConnectionTreeModel::removeGroup(int row)
 {
 	beginRemoveRows({}, row, row);