diff --git a/panels/dock/package/main.qml b/panels/dock/package/main.qml
index 17263de63..5067170da 100644
--- a/panels/dock/package/main.qml
+++ b/panels/dock/package/main.qml
@@ -516,9 +516,9 @@ Window {
                 onXChanged: dockCenterPartPosChanged()
                 onYChanged: dockCenterPartPosChanged()
                 Layout.leftMargin: !useColumnLayout && Panel.itemAlignment === Dock.CenterAlignment ?
-                    (dock.width - dockCenterPart.implicitWidth) / 2 - (dockLeftPart.implicitWidth + 20) + Math.min((dock.width - dockCenterPart.implicitWidth) / 2 - (dockRightPart.implicitWidth + 20), 0) : 0
+                    Math.max(0, (dock.width - dockCenterPart.implicitWidth) / 2 - (dockLeftPart.implicitWidth + 20) + Math.min((dock.width - dockCenterPart.implicitWidth) / 2 - (dockRightPart.implicitWidth + 20), 0)) : 0
                 Layout.topMargin: useColumnLayout && Panel.itemAlignment === Dock.CenterAlignment ?
-                    (dock.height - dockCenterPart.implicitHeight) / 2 - (dockLeftPart.implicitHeight + 20) + Math.min((dock.height - dockCenterPart.implicitHeight) / 2 - (dockRightPart.implicitHeight + 20), 0) : 0
+                    Math.max(0, (dock.height - dockCenterPart.implicitHeight) / 2 - (dockLeftPart.implicitHeight + 20) + Math.min((dock.height - dockCenterPart.implicitHeight) / 2 - (dockRightPart.implicitHeight + 20), 0)) : 0
 
                 Behavior on Layout.leftMargin {
                     enabled: !dock.isDragging && !Applet.isResizing