diff --git a/osu.Game/Overlays/SettingsPanel.cs b/osu.Game/Overlays/SettingsPanel.cs
index d571557993..1681187f82 100644
--- a/osu.Game/Overlays/SettingsPanel.cs
+++ b/osu.Game/Overlays/SettingsPanel.cs
@@ -328,7 +328,7 @@ namespace osu.Game.Overlays
                 base.UpdateAfterChildren();
 
                 // no null check because the usage of this class is strict
-                HeaderBackground.Alpha = -ExpandableHeader.Y / ExpandableHeader.LayoutSize.Y;
+                HeaderBackground!.Alpha = -ExpandableHeader!.Y / ExpandableHeader.LayoutSize.Y;
             }
         }
     }