diff --git a/osu.Game/Screens/Ranking/ScorePanelList.cs b/osu.Game/Screens/Ranking/ScorePanelList.cs
index 711e0d60ec..4ac30ef4ed 100644
--- a/osu.Game/Screens/Ranking/ScorePanelList.cs
+++ b/osu.Game/Screens/Ranking/ScorePanelList.cs
@@ -301,6 +301,9 @@ namespace osu.Game.Screens.Ranking
 
         protected override bool OnKeyDown(KeyDownEvent e)
         {
+            if (expandedPanel == null)
+                return base.OnKeyDown(e);
+
             var expandedPanelIndex = flow.GetPanelIndex(expandedPanel.Score);
 
             switch (e.Key)