diff --git a/DnsServerCore/WebServiceDashboardApi.cs b/DnsServerCore/WebServiceDashboardApi.cs
index 283727ae..9def74e4 100644
--- a/DnsServerCore/WebServiceDashboardApi.cs
+++ b/DnsServerCore/WebServiceDashboardApi.cs
@@ -24,7 +24,6 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.Net;
 using System.Threading.Tasks;
-using TechnitiumLibrary;
 using TechnitiumLibrary.Net.Dns;
 using TechnitiumLibrary.Net.Dns.ResourceRecords;