diff --git a/plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml b/plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml
index 03158266f5..502e903416 100644
--- a/plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml
+++ b/plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml
@@ -101,7 +101,7 @@ Item {
                     }
                 }
 
-                onActivated: UM.ActiveTool.properties.setValue("SelectedActiveExtruder", extruders_model.getItem(index).id);
+                onActivated: UM.ActiveTool.setProperty("SelectedActiveExtruder", extruders_model.getItem(index).id);
                 onModelChanged: updateCurrentIndex();
 
                 function updateCurrentIndex()