diff --git a/share/qtcreator/qmldesigner/effectComposerQmlSources/EffectNodesComboBox.qml b/share/qtcreator/qmldesigner/effectComposerQmlSources/EffectNodesComboBox.qml
index 7051a9292fc..d829f42318b 100644
--- a/share/qtcreator/qmldesigner/effectComposerQmlSources/EffectNodesComboBox.qml
+++ b/share/qtcreator/qmldesigner/effectComposerQmlSources/EffectNodesComboBox.qml
@@ -74,7 +74,7 @@ StudioControls.ComboBox {
     Window {
         id: window
 
-        flags: Qt.Dialog | Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint
+        flags: Qt.Tool | Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint
 
         onActiveFocusItemChanged: {
             if (!window.activeFocusItem && !root.hovered && root.popup.opened)
diff --git a/share/qtcreator/qmldesigner/effectComposerQmlSources/PreviewImagesComboBox.qml b/share/qtcreator/qmldesigner/effectComposerQmlSources/PreviewImagesComboBox.qml
index 2a35606a14a..201fab9699d 100644
--- a/share/qtcreator/qmldesigner/effectComposerQmlSources/PreviewImagesComboBox.qml
+++ b/share/qtcreator/qmldesigner/effectComposerQmlSources/PreviewImagesComboBox.qml
@@ -108,7 +108,7 @@ StudioControls.ComboBox {
     Window {
         id: window
 
-        flags: Qt.Dialog | Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint
+        flags: Qt.Tool | Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint
 
         onActiveFocusItemChanged: {
             if (!window.activeFocusItem && !root.hovered && root.popup.opened)
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/PopupDialog.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/PopupDialog.qml
index acf805928e7..40c35df27c7 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/PopupDialog.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/PopupDialog.qml
@@ -104,7 +104,7 @@ QtObject {
                 return root.maximumHeight + (2 * window.margin)
         }
         visible: false
-        flags: Qt.FramelessWindowHint | Qt.Dialog | Qt.WindowStaysOnTopHint
+        flags: Qt.FramelessWindowHint | Qt.Tool | Qt.WindowStaysOnTopHint
         color: "transparent"
 
         onClosing: function (close) {
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TopLevelComboBox.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TopLevelComboBox.qml
index 27f8333d246..284e32a7b25 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TopLevelComboBox.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TopLevelComboBox.qml
@@ -110,7 +110,7 @@ T.ComboBox {
         width: control.listView.width
         height: control.listView.height + 2 * control.style.borderWidth
         visible: false
-        flags: Qt.FramelessWindowHint | Qt.Dialog | Qt.NoDropShadowWindowHint | Qt.WindowStaysOnTopHint
+        flags: Qt.FramelessWindowHint | Qt.Tool | Qt.NoDropShadowWindowHint | Qt.WindowStaysOnTopHint
         modality: Qt.NonModal
         transientParent: control.Window.window
         color: "transparent"