diff --git a/osu.Game/Beatmaps/IWorkingBeatmap.cs b/osu.Game/Beatmaps/IWorkingBeatmap.cs
index 3bfbbad714..5a8ae45226 100644
--- a/osu.Game/Beatmaps/IWorkingBeatmap.cs
+++ b/osu.Game/Beatmaps/IWorkingBeatmap.cs
@@ -37,12 +37,12 @@ namespace osu.Game.Beatmaps
         /// <summary>
         /// Retrieves the <see cref="IBeatmap"/> which this <see cref="IWorkingBeatmap"/> represents.
         /// </summary>
-        IBeatmap Beatmap { get; }
+        IBeatmap? Beatmap { get; }
 
         /// <summary>
         /// Retrieves the background for this <see cref="IWorkingBeatmap"/>.
         /// </summary>
-        Texture Background { get; }
+        Texture? Background { get; }
 
         /// <summary>
         /// Retrieves the <see cref="Waveform"/> for the <see cref="Track"/> of this <see cref="IWorkingBeatmap"/>.
@@ -57,12 +57,12 @@ namespace osu.Game.Beatmaps
         /// <summary>
         /// Retrieves the <see cref="Skin"/> which this <see cref="IWorkingBeatmap"/> provides.
         /// </summary>
-        ISkin Skin { get; }
+        ISkin? Skin { get; }
 
         /// <summary>
         /// Retrieves the <see cref="Track"/> which this <see cref="IWorkingBeatmap"/> has loaded.
         /// </summary>
-        Track Track { get; }
+        Track? Track { get; }
 
         /// <summary>
         /// Constructs a playable <see cref="IBeatmap"/> from <see cref="Beatmap"/> using the applicable converters for a specific <see cref="RulesetInfo"/>.
@@ -114,7 +114,7 @@ namespace osu.Game.Beatmaps
         /// Returns the stream of the file from the given storage path.
         /// </summary>
         /// <param name="storagePath">The storage path to the file.</param>
-        Stream GetStream(string storagePath);
+        Stream? GetStream(string storagePath);
 
         /// <summary>
         /// Beings loading the contents of this <see cref="IWorkingBeatmap"/> asynchronously.