diff --git a/osu.Game.Modes.Osu/Objects/OsuHitObject.cs b/osu.Game.Modes.Osu/Objects/OsuHitObject.cs
index 5e45d04390..55fc99e41a 100644
--- a/osu.Game.Modes.Osu/Objects/OsuHitObject.cs
+++ b/osu.Game.Modes.Osu/Objects/OsuHitObject.cs
@@ -8,7 +8,6 @@ using osu.Game.Modes.Objects.Types;
 using OpenTK.Graphics;
 using osu.Game.Beatmaps.Timing;
 using osu.Game.Database;
-using System;
 
 namespace osu.Game.Modes.Osu.Objects
 {
diff --git a/osu.Game/Modes/Beatmaps/BeatmapConverter.cs b/osu.Game/Modes/Beatmaps/BeatmapConverter.cs
index 4a8684864f..3da1dff001 100644
--- a/osu.Game/Modes/Beatmaps/BeatmapConverter.cs
+++ b/osu.Game/Modes/Beatmaps/BeatmapConverter.cs
@@ -32,6 +32,6 @@ namespace osu.Game.Modes.Beatmaps
         /// </summary>
         /// <param name="beatmap">The Beatmap to check.</param>
         /// <returns>Whether the Beatmap can be converted using this Beatmap Converter.</returns>
-        public bool CanConvert(Beatmap beatmap) => ValidConversionTypes.All(t => beatmap.HitObjects.Any(h => t.IsAssignableFrom(h.GetType())));
+        public bool CanConvert(Beatmap beatmap) => ValidConversionTypes.All(t => beatmap.HitObjects.Any(h => h.GetType().IsInstanceOfType(t)));
     }
 }