diff --git a/Assets/Cryville.EEW.Unity/UI/EventGroupView.cs b/Assets/Cryville.EEW.Unity/UI/EventGroupView.cs
index 5e2f140..3aecef8 100644
--- a/Assets/Cryville.EEW.Unity/UI/EventGroupView.cs
+++ b/Assets/Cryville.EEW.Unity/UI/EventGroupView.cs
@@ -18,10 +18,10 @@ namespace Cryville.EEW.Unity.UI {
 			m_groupHeader.onClick.AddListener(OnGroupHeaderClicked);
 		}
 		void OnGroupHeaderClicked() {
-			SetExpanded(!m_listViewContainer.gameObject.activeSelf);
+			SetExpanded(!m_listViewContainer.activeSelf);
 		}
 		void SetExpanded(bool expanded) {
-			m_listViewContainer.gameObject.SetActive(expanded);
+			m_listViewContainer.SetActive(expanded);
 			m_expander.SetActive(!expanded);
 		}