diff --git a/plugins/base/utils/scene-item-selection.cpp b/plugins/base/utils/scene-item-selection.cpp
index 297e21a2..1b3dca07 100644
--- a/plugins/base/utils/scene-item-selection.cpp
+++ b/plugins/base/utils/scene-item-selection.cpp
@@ -648,8 +648,10 @@ SceneItemSelectionWidget::SceneItemSelectionWidget(QWidget *parent,
 		"AdvSceneSwitcher.sceneItemSelection.configure"));
 
 	_index->setMinimum(1);
+	_index->setMaximum(999);
 	_index->setSuffix(".");
 	_indexEnd->setMinimum(1);
+	_indexEnd->setMaximum(999);
 	_indexEnd->setSuffix(".");
 
 	populateSourceGroupSelection(_sourceGroups);