diff --git a/osu.Game/Skinning/LegacySongProgress.cs b/osu.Game/Skinning/LegacySongProgress.cs
index 57280fff07..4d8838e031 100644
--- a/osu.Game/Skinning/LegacySongProgress.cs
+++ b/osu.Game/Skinning/LegacySongProgress.cs
@@ -73,6 +73,7 @@ private void load()
 
             firstEventTime = beatmap?.Value.Storyboard.EarliestEventTime ?? 0;
             firstHitTime = drawableRuleset.Objects.First().StartTime;
+            //TODO: this isn't always correct (consider mania where a non-last object may last for longer than the last in the list).
             lastHitTime = drawableRuleset.Objects.Last().GetEndTime() + 1;
         }