diff --git a/osu.Game/Online/Chat/ChannelManager.cs b/osu.Game/Online/Chat/ChannelManager.cs
index 9091a72340..f4bb1f7815 100644
--- a/osu.Game/Online/Chat/ChannelManager.cs
+++ b/osu.Game/Online/Chat/ChannelManager.cs
@@ -3,7 +3,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Collections.ObjectModel;
 using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Configuration;
diff --git a/osu.Game/Overlays/ChatOverlay.cs b/osu.Game/Overlays/ChatOverlay.cs
index e25da5924e..bdb28d1246 100644
--- a/osu.Game/Overlays/ChatOverlay.cs
+++ b/osu.Game/Overlays/ChatOverlay.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using System.Collections.Generic;
-using System.Collections.Specialized;
 using osuTK;
 using osuTK.Graphics;
 using osu.Framework.Allocation;
@@ -20,7 +19,6 @@ using osu.Game.Online.Chat;
 using osu.Game.Overlays.Chat;
 using osu.Game.Overlays.Chat.Selection;
 using osu.Game.Overlays.Chat.Tabs;
-using System.Linq;
 
 namespace osu.Game.Overlays
 {