diff --git a/share/qtcreator/qmldesigner/propertyeditor/Qt/CheckBox.qml b/share/qtcreator/qmldesigner/propertyeditor/Qt/CheckBox.qml
index 3563f2d7538e9a76c4e5a804cb99c534656d5d23..0d1601ec4ea6284b802ce610d8185fd736652737 100644
--- a/share/qtcreator/qmldesigner/propertyeditor/Qt/CheckBox.qml
+++ b/share/qtcreator/qmldesigner/propertyeditor/Qt/CheckBox.qml
@@ -56,10 +56,11 @@ QWidget { //This is a special checkBox that does color coding for states
         QCheckBox {
             id: localCheckBox
             checkable: true;
-            checked: (backendValue === undefined || backendValue === null) ? false : backendValue.value;
+            checked: (backendValue === undefined || backendValue === null) ? false : backendValue.value || null;
             onToggled: {
                 backendValue.value = checked;
             }
+			maximumWidth: 30
         }
 
         QLabel {