diff --git a/Apps/DropRequestsApp/App.cs b/Apps/DropRequestsApp/App.cs
index 600458f0..e1b3ee6b 100644
--- a/Apps/DropRequestsApp/App.cs
+++ b/Apps/DropRequestsApp/App.cs
@@ -26,6 +26,7 @@ using System.Net;
 using System.Threading.Tasks;
 using TechnitiumLibrary.Net;
 using TechnitiumLibrary.Net.Dns;
+using TechnitiumLibrary.Net.Dns.ResourceRecords;
 
 namespace DropRequests
 {