diff --git a/applets/taskmanager/package/contents/ui/ToolTipDelegate.qml b/applets/taskmanager/package/contents/ui/ToolTipDelegate.qml
--- a/applets/taskmanager/package/contents/ui/ToolTipDelegate.qml
+++ b/applets/taskmanager/package/contents/ui/ToolTipDelegate.qml
@@ -216,7 +216,7 @@
                 ToolTipWindowMouseArea {
                     anchors.fill: parent
                     modelIndex: tasksModel.makeModelIndex(parentIndex)
-                    winId: windows != undefined ? (windows[0] || 0) : 0
+                    winId: windows ? (windows[0] || 0) : 0
                 }
             }
 
@@ -227,7 +227,7 @@
                 height: thumbnailHeight
 
                 // if there's no window associated with this task, we might still be able to raise the player
-                visible: windows == undefined || !windows[0] && mpris2Source.canRaise
+                visible: (!windows || !windows[0]) && canRaise
                 onClicked: mpris2Source.raise()
 
                 PlasmaCore.IconItem {