diff --git a/osu.Game/Overlays/Profile/Header/Components/RankGraph.cs b/osu.Game/Overlays/Profile/Header/Components/RankGraph.cs
index ffa918e4e8..26126bca58 100644
--- a/osu.Game/Overlays/Profile/Header/Components/RankGraph.cs
+++ b/osu.Game/Overlays/Profile/Header/Components/RankGraph.cs
@@ -189,7 +189,7 @@ namespace osu.Game.Overlays.Profile.Header.Components
 
             public void HideBar() => bar.FadeOut(fade_duration);
 
-            private int calculateIndex(float mouseXPosition) => (int)MathF.Round(mouseXPosition / DrawWidth * (DefaultValueCount - 1));
+            private int calculateIndex(float mouseXPosition) => (int)Math.Clamp(MathF.Round(mouseXPosition / DrawWidth * (DefaultValueCount - 1)), 0, DefaultValueCount - 1);
 
             private Vector2 calculateBallPosition(int index)
             {