diff --git a/DepotDownloader/ContentDownloader2.cs b/DepotDownloader/ContentDownloader2.cs
index 28de07b1..49729bae 100644
--- a/DepotDownloader/ContentDownloader2.cs
+++ b/DepotDownloader/ContentDownloader2.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;