diff --git a/components/fullscreenpanel.cpp b/components/fullscreenpanel.cpp
index d42a9449..5af9b8e7 100644
--- a/components/fullscreenpanel.cpp
+++ b/components/fullscreenpanel.cpp
@@ -42,10 +42,8 @@ FullScreenPanel::~FullScreenPanel()
 void FullScreenPanel::showEvent(QShowEvent *event)
 {
     QQuickWindow::showEvent(event);
-    setWindowState(Qt::WindowFullScreen);
     KWindowSystem::setState(winId(), NET::SkipTaskbar);
 }
 
-
 #include "fullscreenpanel.moc"
 
diff --git a/containments/panel/package/contents/ui/SlidingPanel.qml b/containments/panel/package/contents/ui/SlidingPanel.qml
index 84cebb2d..d2d7bc8c 100644
--- a/containments/panel/package/contents/ui/SlidingPanel.qml
+++ b/containments/panel/package/contents/ui/SlidingPanel.qml
@@ -40,7 +40,7 @@ FullScreenPanel {
 
     property alias fixedArea: fixedArea
     function open() {
-        window.visible = true;
+        window.showFullScreen();
         peekAnim.running = true;
     }
     function close() {
diff --git a/containments/taskpanel/package/contents/ui/TaskSwitcher.qml b/containments/taskpanel/package/contents/ui/TaskSwitcher.qml
index a052fbf4..862fc795 100644
--- a/containments/taskpanel/package/contents/ui/TaskSwitcher.qml
+++ b/containments/taskpanel/package/contents/ui/TaskSwitcher.qml
@@ -83,7 +83,7 @@ FullScreenPanel {
         property alias to: internalAnim.to
         property alias from: internalAnim.from
         ScriptAction {
-            script: window.visible = true;
+            script: window.showFullScreen();
         }
         NumberAnimation {
             id: internalAnim