diff --git a/src/widgets/kdirmodel.h b/src/widgets/kdirmodel.h
--- a/src/widgets/kdirmodel.h
+++ b/src/widgets/kdirmodel.h
@@ -272,13 +272,6 @@
 private:
     friend class KDirModelPrivate;
     KDirModelPrivate *const d;
-
-    Q_PRIVATE_SLOT(d, void _k_slotNewItems(const QUrl &, const KFileItemList &))
-    Q_PRIVATE_SLOT(d, void _k_slotDeleteItems(const KFileItemList &))
-    Q_PRIVATE_SLOT(d, void _k_slotRefreshItems(const QList<QPair<KFileItem, KFileItem> > &))
-    Q_PRIVATE_SLOT(d, void _k_slotClear())
-    Q_PRIVATE_SLOT(d, void _k_slotRedirection(const QUrl &, const QUrl &))
-    Q_PRIVATE_SLOT(d, void _k_slotJobUrlsChanged(const QStringList &))
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(KDirModel::DropsAllowed)
diff --git a/src/widgets/kdirmodel.cpp b/src/widgets/kdirmodel.cpp
--- a/src/widgets/kdirmodel.cpp
+++ b/src/widgets/kdirmodel.cpp
@@ -404,16 +404,16 @@
     }
     d->m_dirLister = dirLister;
     d->m_dirLister->setParent(this);
-    connect(d->m_dirLister, SIGNAL(itemsAdded(QUrl,KFileItemList)),
-            this, SLOT(_k_slotNewItems(QUrl,KFileItemList)));
-    connect(d->m_dirLister, SIGNAL(itemsDeleted(KFileItemList)),
-            this, SLOT(_k_slotDeleteItems(KFileItemList)));
-    connect(d->m_dirLister, SIGNAL(refreshItems(QList<QPair<KFileItem,KFileItem> >)),
-            this, SLOT(_k_slotRefreshItems(QList<QPair<KFileItem,KFileItem> >)));
-    connect(d->m_dirLister, SIGNAL(clear()),
-            this, SLOT(_k_slotClear()));
-    connect(d->m_dirLister, SIGNAL(redirection(QUrl,QUrl)),
-            this, SLOT(_k_slotRedirection(QUrl,QUrl)));
+    connect(d->m_dirLister, &KCoreDirLister::itemsAdded, this,
+        [this](const QUrl &dirUrl, const KFileItemList &items){d->_k_slotNewItems(dirUrl, items);} );
+    connect(d->m_dirLister, &KCoreDirLister::itemsDeleted, this,
+        [this](const KFileItemList &items){d->_k_slotDeleteItems(items);} );
+    connect(d->m_dirLister, &KCoreDirLister::refreshItems, this,
+        [this](const QList<QPair<KFileItem,KFileItem> > &items){d->_k_slotRefreshItems(items);} );
+    connect(d->m_dirLister, QOverload<>::of(&KCoreDirLister::clear), this,
+        [this](){d->_k_slotClear();} );
+    connect(d->m_dirLister, QOverload<const QUrl&, const QUrl&>::of(&KCoreDirLister::redirection), this,
+        [this](const QUrl &oldUrl, const QUrl &newUrl){d->_k_slotRedirection(oldUrl, newUrl);} );
 }
 
 KDirLister *KDirModel::dirLister() const