diff --git a/search-ukcc-plugin/search.cpp b/search-ukcc-plugin/search.cpp
index e8c324a..7b318e6 100644
--- a/search-ukcc-plugin/search.cpp
+++ b/search-ukcc-plugin/search.cpp
@@ -176,7 +176,7 @@ QWidget *Search::pluginUi()
         });
         connect(m_contentIndexBtn, &kdk::KSwitchButton::pressed, this, [ & ] {
             if (!m_contentIndexBtn->isChecked()) {
-                QMessageBox msgBox;
+                QMessageBox msgBox(m_pluginWidget);
                 msgBox.setModal(true);
                 msgBox.setIcon(QMessageBox::Warning);
                 msgBox.setText(tr("Create file content index will increase the usage of memory and CPU, do you still want to open it?"));