diff --git a/plugins/projectmanagerview/projecttreeview.h b/plugins/projectmanagerview/projecttreeview.h
--- a/plugins/projectmanagerview/projecttreeview.h
+++ b/plugins/projectmanagerview/projecttreeview.h
@@ -23,13 +23,15 @@
 
 #include <QTreeView>
 #include <QPointer>
+#include <QBasicTimer>
 
 class QAbstractProxyModel;
 
 namespace KDevelop
 {
 class IProject;
 class ProjectBaseItem;
+class ProjectFolderItem;
 class Path;
 }
 
@@ -58,6 +60,8 @@
 
     protected:
         void keyPressEvent(QKeyEvent *event) override;
+        void timerEvent(QTimerEvent *event) override;
+        void dragMoveEvent(QDragMoveEvent *event) override;
         void dropEvent(QDropEvent* event) override;
         void drawBranches(QPainter* painter, const QRect& rect, const QModelIndex& index) const override;
 
@@ -68,6 +72,8 @@
         KDevelop::IProject* getCurrentProject();
 
         QPointer<KDevelop::IProject> m_previousSelection;
+        QBasicTimer expandTimer;
+        KDevelop::ProjectFolderItem *curExpandTarget;
 };
 
 #endif // KDEVPLATFORM_PLUGIN_PROJECTTREEVIEW_H
diff --git a/plugins/projectmanagerview/projecttreeview.cpp b/plugins/projectmanagerview/projecttreeview.cpp
--- a/plugins/projectmanagerview/projecttreeview.cpp
+++ b/plugins/projectmanagerview/projecttreeview.cpp
@@ -146,6 +146,37 @@
     return indexAt(pos).data(ProjectModel::ProjectItemRole).value<ProjectBaseItem*>();
 }
 
+void ProjectTreeView::timerEvent(QTimerEvent *event) {
+    if (event->timerId() == expandTimer.timerId()) {
+        expandTimer.stop();
+        expand(mapFromItem(curExpandTarget));
+        curExpandTarget = nullptr;
+    } else {
+        QTreeView::timerEvent(event);
+    }
+}
+
+void ProjectTreeView::dragMoveEvent(QDragMoveEvent *event)
+{
+    ProjectBaseItem *destItem = itemAtPos(event->pos());
+    if (destItem && dropIndicatorPosition() == OnItem) {
+        ProjectFolderItem *folder = destItem->folder();
+        bool canExpand = folder && !isExpanded(mapFromItem(folder)) && autoExpandDelay() >= 0;
+        bool expandTargetNotChanged = folder && folder == curExpandTarget;
+        if (folder != curExpandTarget && canExpand) {
+            curExpandTarget = folder;
+            expandTimer.start(autoExpandDelay(), this);
+        } else if (!expandTargetNotChanged)  {
+            expandTimer.stop();
+            curExpandTarget = nullptr;
+        }
+    } else {
+        expandTimer.stop();
+        curExpandTarget = nullptr;
+    }
+    QAbstractItemView::dragMoveEvent(event);
+}
+
 void ProjectTreeView::dropEvent(QDropEvent* event)
 {
     ProjectItemContext* selectionCtxt =