diff --git a/osu.Game/Online/Rooms/PlaylistItem.cs b/osu.Game/Online/Rooms/PlaylistItem.cs
index a0711d9ded..2213311c67 100644
--- a/osu.Game/Online/Rooms/PlaylistItem.cs
+++ b/osu.Game/Online/Rooms/PlaylistItem.cs
@@ -72,7 +72,7 @@ namespace osu.Game.Online.Rooms
         /// In many cases, this will *not* contain any usable information apart from OnlineID.
         /// </summary>
         [JsonIgnore]
-        public IBeatmapInfo Beatmap { get; set; } = null!;
+        public IBeatmapInfo Beatmap { get; private set; }
 
         [JsonIgnore]
         public IBindable<bool> Valid => valid;
@@ -81,6 +81,7 @@ namespace osu.Game.Online.Rooms
 
         [JsonConstructor]
         private PlaylistItem()
+            : this(new APIBeatmap())
         {
         }