diff --git a/src/Renci.SshNet.Tests/Classes/Messages/Transport/KeyExchangeDhGroupExchangeReplyBuilder.cs b/src/Renci.SshNet.Tests/Classes/Messages/Transport/KeyExchangeDhGroupExchangeReplyBuilder.cs
index 0f229a073..dbb5d0ede 100644
--- a/src/Renci.SshNet.Tests/Classes/Messages/Transport/KeyExchangeDhGroupExchangeReplyBuilder.cs
+++ b/src/Renci.SshNet.Tests/Classes/Messages/Transport/KeyExchangeDhGroupExchangeReplyBuilder.cs
@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using System.Text;
+using System.Text;
 using Renci.SshNet.Common;
 using Renci.SshNet.Messages.Transport;