diff --git a/applets/panelspacer/contents/ui/main.qml b/applets/panelspacer/contents/ui/main.qml
--- a/applets/panelspacer/contents/ui/main.qml
+++ b/applets/panelspacer/contents/ui/main.qml
@@ -33,6 +33,8 @@
     Layout.fillWidth: plasmoid.configuration.expanding
     Layout.fillHeight: plasmoid.configuration.expanding
 
+    Layout.minimumWidth: 1
+    Layout.minimumHeight: 1
     Layout.preferredWidth: horizontal ? plasmoid.configuration.length : 0
     Layout.preferredHeight: horizontal ? 0 : plasmoid.configuration.length