diff --git a/src/controls/QskTabBar.cpp b/src/controls/QskTabBar.cpp
index 677d3acf..faac29ca 100644
--- a/src/controls/QskTabBar.cpp
+++ b/src/controls/QskTabBar.cpp
@@ -219,7 +219,7 @@ namespace
 
         inline QskLinearBox* buttonBox() const
         {
-            return qobject_cast< QskLinearBox* >( childItems().first() );
+            return qobject_cast< QskLinearBox* >( childItems().constFirst() );
         }
 
         void enableAutoTranslation( bool on )