diff --git a/src/headers/duration-control.hpp b/src/headers/duration-control.hpp
index 8abf6a91..0995e67e 100644
--- a/src/headers/duration-control.hpp
+++ b/src/headers/duration-control.hpp
@@ -42,6 +42,7 @@ public:
 	void SetValue(double value);
 	void SetUnit(DurationUnit u);
 	void SetDuration(Duration d);
+	QDoubleSpinBox *SpinBox() { return _duration; }
 
 private slots:
 	void _DurationChanged(double value);
diff --git a/src/macro-action-scene-switch.cpp b/src/macro-action-scene-switch.cpp
index 36b4e6e5..1db50d74 100644
--- a/src/macro-action-scene-switch.cpp
+++ b/src/macro-action-scene-switch.cpp
@@ -130,6 +130,8 @@ MacroActionSwitchSceneEdit::MacroActionSwitchSceneEdit(
 	_blockUntilTransitionDone = new QCheckBox(obs_module_text(
 		"AdvSceneSwitcher.action.scene.blockUntilTransitionDone"));
 
+	_duration->SpinBox()->setSpecialValueText("-");
+
 	QWidget::connect(_scenes, SIGNAL(SceneChanged(const SceneSelection &)),
 			 this, SLOT(SceneChanged(const SceneSelection &)));
 	QWidget::connect(_transitions,