diff --git a/pglab/ConnectionConfigurationWidget.cpp b/pglab/ConnectionConfigurationWidget.cpp
index cbbdb66..979b909 100644
--- a/pglab/ConnectionConfigurationWidget.cpp
+++ b/pglab/ConnectionConfigurationWidget.cpp
@@ -158,8 +158,10 @@ void ConnectionConfigurationWidget::retranslateUi()
 void ConnectionConfigurationWidget::setData(const ConnectionConfig &cfg)
 {
 	auto group = cfg.parent();
-	auto group_idx = m_connectionModel->findGroup(group->conngroup_id);
-	cmbbxGroup->setCurrentIndex(group_idx);
+	if (group) {
+		auto group_idx = m_connectionModel->findGroup(group->conngroup_id);
+		cmbbxGroup->setCurrentIndex(group_idx);
+	}
 
 	m_uuid = cfg.uuid();
 	edtName->setText(stdStrToQ(cfg.name()));