diff --git a/src/widgets/widgets/qtabbar.cpp b/src/widgets/widgets/qtabbar.cpp
index 18729b98bc..cf485974f6 100644
--- a/src/widgets/widgets/qtabbar.cpp
+++ b/src/widgets/widgets/qtabbar.cpp
@@ -1986,9 +1986,6 @@ void QTabBar::mouseMoveEvent(QMouseEvent *event)
         event->ignore();
         return;
     }
-    QStyleOptionTabBarBase optTabBase;
-    optTabBase.init(this);
-    optTabBase.documentMode = d->documentMode;
 }
 
 void QTabBarPrivate::setupMovableTab()