diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneSpectator.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneSpectator.cs
index b59f6a4eb7..9d85a9995d 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneSpectator.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneSpectator.cs
@@ -3,6 +3,8 @@
 
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
@@ -11,6 +13,7 @@ using osu.Framework.Screens;
 using osu.Framework.Testing;
 using osu.Framework.Utils;
 using osu.Game.Beatmaps;
+using osu.Game.Database;
 using osu.Game.Online;
 using osu.Game.Online.Spectator;
 using osu.Game.Replays.Legacy;
@@ -29,6 +32,9 @@ namespace osu.Game.Tests.Visual.Gameplay
         [Cached(typeof(SpectatorStreamingClient))]
         private TestSpectatorStreamingClient testSpectatorStreamingClient = new TestSpectatorStreamingClient();
 
+        [Cached(typeof(UserLookupCache))]
+        private UserLookupCache lookupCache = new TestUserLookupCache();
+
         // used just to show beatmap card for the time being.
         protected override bool UseOnlineAPI => true;
 
@@ -301,5 +307,14 @@ namespace osu.Game.Tests.Visual.Gameplay
                 });
             }
         }
+
+        internal class TestUserLookupCache : UserLookupCache
+        {
+            protected override Task<User> ComputeValueAsync(int lookup, CancellationToken token = default) => Task.FromResult(new User
+            {
+                Id = lookup,
+                Username = $"User {lookup}"
+            });
+        }
     }
 }