diff --git a/src/ThreadRunner.cs b/src/ThreadRunner.cs
index 3e57dde..586fe94 100644
--- a/src/ThreadRunner.cs
+++ b/src/ThreadRunner.cs
@@ -1,7 +1,6 @@
 using DCFApixels.DragonECS.ClassicThreadsInternal;
 using System;
 using System.Collections.Concurrent;
-using System.Collections.Generic;
 using System.Threading;
 
 namespace DCFApixels.DragonECS