diff --git a/app/abstractwindowinterface.h b/app/abstractwindowinterface.h
index 2877de4b7..247b0171e 100644
--- a/app/abstractwindowinterface.h
+++ b/app/abstractwindowinterface.h
@@ -16,6 +16,8 @@
 
 namespace Latte {
 
+class XWindowInterface;
+
 class AbstractWindowInterface : public QObject {
     Q_OBJECT
     
@@ -33,9 +35,11 @@ public:
     virtual void setDockStruts(const QRect &dockRect, Plasma::Types::Location location) = 0;
     virtual void removeDockStruts() = 0;
     
+    static AbstractWindowInterface *getInstance(QQuickWindow *const view, QObject *parent = nullptr);
+    
 signals:
     void activeWindowChanged(WId wid);
-    void windowChanged(const WindowInfoWrap &winfo);
+    void windowChanged(WId winfo);
     void windowAdded(WId wid);
     void windowRemoved(WId wid);
     void currentDesktopChanged(int desktop);
diff --git a/app/xwindowinterface.cpp b/app/xwindowinterface.cpp
index 411c567b4..3ad11b39c 100644
--- a/app/xwindowinterface.cpp
+++ b/app/xwindowinterface.cpp
@@ -5,6 +5,7 @@
 #include <QtX11Extras/QX11Info>
 
 #include <KWindowSystem>
+#include <KWindowInfo>
 #include <NETWM>
 
 namespace Latte {
@@ -167,7 +168,7 @@ void XWindowInterface::windowChangedProxy(WId wid, NET::Properties prop1, NET::P
     if (prop1 && !(prop1 & NET::WMState || prop1 & NET::WMGeometry || prop1 & NET::ActiveWindow))
         return;
         
-    emit windowChanged(requestInfo(wid));
+    emit windowChanged(wid);
 }
 
 }