diff --git a/org.kde.desktop/ComboBox.qml b/org.kde.desktop/ComboBox.qml
--- a/org.kde.desktop/ComboBox.qml
+++ b/org.kde.desktop/ComboBox.qml
@@ -202,6 +202,7 @@
         bottomMargin: 6
         Kirigami.Theme.colorSet: Kirigami.Theme.View
         Kirigami.Theme.inherit: controlRoot.Kirigami.Theme.inherit
+        modal: true
 
         contentItem: ListView {
             id: listView