diff --git a/applets/digital-clock/package/contents/ui/main.qml b/applets/digital-clock/package/contents/ui/main.qml
--- a/applets/digital-clock/package/contents/ui/main.qml
+++ b/applets/digital-clock/package/contents/ui/main.qml
@@ -48,10 +48,10 @@
     Plasmoid.toolTipItem: Loader {
         id: tooltipLoader
 
-        Layout.minimumWidth: item.width
-        Layout.maximumWidth: item.width
-        Layout.minimumHeight: item.height
-        Layout.maximumHeight: item.height
+        Layout.minimumWidth: item ? item.width : 0
+        Layout.maximumWidth: item ? item.width : 0
+        Layout.minimumHeight: item ? item.height : 0
+        Layout.maximumHeight: item ? item.height : 0
 
         source: "Tooltip.qml"
     }