diff --git a/osu.Game/Models/RealmBeatmapSet.cs b/osu.Game/Models/RealmBeatmapSet.cs
index ddf2cf48fa..3217abb419 100644
--- a/osu.Game/Models/RealmBeatmapSet.cs
+++ b/osu.Game/Models/RealmBeatmapSet.cs
@@ -55,7 +55,7 @@ namespace osu.Game.Models
 
         public bool Equals(IBeatmapSetInfo? other)
         {
-            if (other is RealmBeatmap b)
+            if (other is RealmBeatmapSet b)
                 return b.ID == ID;
 
             if (OnlineID > 0 && other?.OnlineID > 0)