diff --git a/src/MemoryLeak/MemoryLeak/Controllers/DiagnosticsController.cs b/src/MemoryLeak/MemoryLeak/Controllers/DiagnosticsController.cs
index 2bd2591..4fd1702 100644
--- a/src/MemoryLeak/MemoryLeak/Controllers/DiagnosticsController.cs
+++ b/src/MemoryLeak/MemoryLeak/Controllers/DiagnosticsController.cs
@@ -1,7 +1,6 @@
 using Microsoft.AspNetCore.Mvc;
 using System;
 using System.Diagnostics;
-using System.Runtime.InteropServices;
 using System.Threading;
 
 namespace MemoryLeak.Controllers