diff --git a/containments/panel/package/contents/ui/SlidingPanel.qml b/containments/panel/package/contents/ui/SlidingPanel.qml
index 23436929..0e2acb7b 100644
--- a/containments/panel/package/contents/ui/SlidingPanel.qml
+++ b/containments/panel/package/contents/ui/SlidingPanel.qml
@@ -122,9 +122,11 @@ NanoShell.FullScreenOverlay {
 
     Rectangle {
         anchors {
-            fill: parent
-            topMargin: root.height // top panel background handled separately in main.qml
+            left: parent.left
+            right: parent.right
+            bottom: parent.bottom
         }
+        height: parent.height - headerHeight
         color: "black"
         opacity: 0.6 * Math.min(1, offset/contentArea.height)