diff --git a/vcl/qt5/QtBuilder.cxx b/vcl/qt5/QtBuilder.cxx
index e282ce872790..95a27a2ec162 100644
--- a/vcl/qt5/QtBuilder.cxx
+++ b/vcl/qt5/QtBuilder.cxx
@@ -164,7 +164,10 @@ QObject* QtBuilder::makeObject(QObject* pParent, std::u16string_view sName, std:
         }
         else
         {
-            pObject = new QDialogButtonBox(pParentWidget);
+            QDialogButtonBox* pButtonBox = new QDialogButtonBox(pParentWidget);
+            if (hasOrientationVertical(rMap))
+                pButtonBox->setOrientation(Qt::Vertical);
+            pObject = pButtonBox;
         }
     }
     else if (sName == u"GtkButton")