diff --git a/src/widgets/graphicsview/qgraphicsitem.cpp b/src/widgets/graphicsview/qgraphicsitem.cpp
index af4443fa00..09c49a239f 100644
--- a/src/widgets/graphicsview/qgraphicsitem.cpp
+++ b/src/widgets/graphicsview/qgraphicsitem.cpp
@@ -11354,8 +11354,7 @@ static void formatGraphicsItemHelper(QDebug debug, const QGraphicsItem *item)
         debug <<  ", flags=" << item->flags();
 }
 
-// FIXME: Qt 6: Make this QDebug operator<<(QDebug debug, const QGraphicsItem *item)
-QDebug operator<<(QDebug debug, QGraphicsItem *item)
+QDebug operator<<(QDebug debug, const QGraphicsItem *item)
 {
     QDebugStateSaver saver(debug);
     debug.nospace();
@@ -11365,7 +11364,7 @@ QDebug operator<<(QDebug debug, QGraphicsItem *item)
         return debug;
     }
 
-    if (QGraphicsObject *o = item->toGraphicsObject())
+    if (const QGraphicsObject *o = item->toGraphicsObject())
         debug << o->metaObject()->className();
     else
         debug << "QGraphicsItem";
@@ -11386,8 +11385,7 @@ QDebug operator<<(QDebug debug, QGraphicsItem *item)
     return debug;
 }
 
-// FIXME: Qt 6: Make this QDebug operator<<(QDebug debug, const QGraphicsObject *item)
-QDebug operator<<(QDebug debug, QGraphicsObject *item)
+QDebug operator<<(QDebug debug, const QGraphicsObject *item)
 {
     QDebugStateSaver saver(debug);
     debug.nospace();
diff --git a/src/widgets/graphicsview/qgraphicsitem.h b/src/widgets/graphicsview/qgraphicsitem.h
index c78d31bbd4..0fb46fc9a8 100644
--- a/src/widgets/graphicsview/qgraphicsitem.h
+++ b/src/widgets/graphicsview/qgraphicsitem.h
@@ -1032,8 +1032,8 @@ template <class T> inline T qgraphicsitem_cast(const QGraphicsItem *item)
 }
 
 #ifndef QT_NO_DEBUG_STREAM
-Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem *item);
-Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, QGraphicsObject *item);
+Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, const QGraphicsItem *item);
+Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, const QGraphicsObject *item);
 Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemChange change);
 Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemFlag flag);
 Q_WIDGETS_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemFlags flags);