diff --git a/osu.Game/Online/Multiplayer/MatchRulesetRoomState.cs b/osu.Game/Online/Multiplayer/MatchRulesetRoomState.cs
index 21bdec1b20..d8072efa2a 100644
--- a/osu.Game/Online/Multiplayer/MatchRulesetRoomState.cs
+++ b/osu.Game/Online/Multiplayer/MatchRulesetRoomState.cs
@@ -12,7 +12,7 @@ namespace osu.Game.Online.Multiplayer
     /// </summary>
     [Serializable]
     [MessagePackObject]
-    public abstract class MatchRulesetRoomState
+    public class MatchRulesetRoomState
     {
     }
 }
diff --git a/osu.Game/Online/Multiplayer/MatchRulesetUserState.cs b/osu.Game/Online/Multiplayer/MatchRulesetUserState.cs
index 647574b54a..e8d9961dbd 100644
--- a/osu.Game/Online/Multiplayer/MatchRulesetUserState.cs
+++ b/osu.Game/Online/Multiplayer/MatchRulesetUserState.cs
@@ -12,7 +12,7 @@ namespace osu.Game.Online.Multiplayer
     /// </summary>
     [Serializable]
     [MessagePackObject]
-    public abstract class MatchRulesetUserState
+    public class MatchRulesetUserState
     {
     }
 }