diff --git a/Discovery/config_dialog.py b/Discovery/config_dialog.py
index bf8777f..8a34d99 100644
--- a/Discovery/config_dialog.py
+++ b/Discovery/config_dialog.py
@@ -14,7 +14,7 @@
 
 from PyQt5.QtCore import QSettings, Qt, QUrl
 from PyQt5.QtGui import QDesktopServices
-from PyQt5.QtWidgets import QApplication, QDialogButtonBox
+from PyQt5.QtWidgets import QApplication, QDialogButtonBox, QMessageBox
 from PyQt5 import uic
 
 from . import dbutils