diff --git a/src/BizHawk.Client.EmuHawk/AVOut/IVideoWriter.cs b/src/BizHawk.Client.EmuHawk/AVOut/IVideoWriter.cs
index 4ffc212977..55781494aa 100644
--- a/src/BizHawk.Client.EmuHawk/AVOut/IVideoWriter.cs
+++ b/src/BizHawk.Client.EmuHawk/AVOut/IVideoWriter.cs
@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using System.Linq;
 
 using BizHawk.Client.Common;
-using BizHawk.Common.CollectionExtensions;
 using BizHawk.Emulation.Common;
 
 namespace BizHawk.Client.EmuHawk