diff --git a/src/widgets/widgets/qmdisubwindow.cpp b/src/widgets/widgets/qmdisubwindow.cpp
index b348c8090d..c2dcacc6ba 100644
--- a/src/widgets/widgets/qmdisubwindow.cpp
+++ b/src/widgets/widgets/qmdisubwindow.cpp
@@ -1768,10 +1768,6 @@ bool QMdiSubWindowPrivate::drawTitleBarWhenMaximized() const
     if (isChildOfTabbedQMdiArea(q))
         return false;
 
-#if QT_CONFIG(style_mac)
-    Q_UNUSED(isChildOfQMdiSubWindow);
-    return true;
-#else
     if (q->style()->styleHint(QStyle::SH_Workspace_FillSpaceOnMaximize, 0, q))
         return true;
 #if defined(QT_NO_MENUBAR) || defined(QT_NO_MAINWINDOW)
@@ -1785,7 +1781,6 @@ bool QMdiSubWindowPrivate::drawTitleBarWhenMaximized() const
 
     return isChildOfQMdiSubWindow(q);
 #endif
-#endif
 }
 
 #ifndef QT_NO_MENUBAR