diff --git a/tabbox/tabbox.cpp b/tabbox/tabbox.cpp
index a56e475237..7b659ffc4b 100644
--- a/tabbox/tabbox.cpp
+++ b/tabbox/tabbox.cpp
@@ -67,7 +67,7 @@ namespace TabBox
 {
 
 TabBoxHandlerImpl::TabBoxHandlerImpl(TabBox* tabBox)
-    : TabBoxHandler()
+    : TabBoxHandler(tabBox)
     , m_tabBox(tabBox)
     , m_desktopFocusChain(new DesktopChainManager(this))
 {
diff --git a/tabbox/tabboxhandler.cpp b/tabbox/tabboxhandler.cpp
index 614c4ad1a2..7c949af451 100644
--- a/tabbox/tabboxhandler.cpp
+++ b/tabbox/tabboxhandler.cpp
@@ -334,8 +334,8 @@ void TabBoxHandlerPrivate::show()
 * TabBoxHandler
 ***********************************************/
 
-TabBoxHandler::TabBoxHandler()
-    : QObject()
+TabBoxHandler::TabBoxHandler(QObject *parent)
+    : QObject(parent)
 {
     KWin::TabBox::tabBox = this;
     d = new TabBoxHandlerPrivate(this);
diff --git a/tabbox/tabboxhandler.h b/tabbox/tabboxhandler.h
index 7358c48119..7cf2eadee1 100644
--- a/tabbox/tabboxhandler.h
+++ b/tabbox/tabboxhandler.h
@@ -95,7 +95,7 @@ class TabBoxHandler : public QObject
 {
     Q_OBJECT
 public:
-    TabBoxHandler();
+    TabBoxHandler(QObject *parent);
     virtual ~TabBoxHandler();
 
     /**