diff --git a/extenderitem.cpp b/extenderitem.cpp
index 6ee514357..3a5c487d5 100644
--- a/extenderitem.cpp
+++ b/extenderitem.cpp
@@ -623,6 +623,13 @@ void ExtenderItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
     }
 }
 
+void ExtenderItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
+{
+    if (d->titleRect().contains(event->pos())) {
+        d->toggleCollapse();
+    }
+}
+
 void ExtenderItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
 {
     if (d->titleRect().contains(event->pos())) {
diff --git a/extenderitem.h b/extenderitem.h
index e7c19da7a..fc9a2d456 100644
--- a/extenderitem.h
+++ b/extenderitem.h
@@ -199,6 +199,7 @@ class PLASMA_EXPORT ExtenderItem : public QGraphicsWidget
         void resizeEvent(QGraphicsSceneResizeEvent *event);
 
         void mousePressEvent(QGraphicsSceneMouseEvent *event);
+        void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
         void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
         void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);