diff --git a/FFMpegCore/FFMPEG/Pipes/PipeHelpers.cs b/FFMpegCore/FFMPEG/Pipes/PipeHelpers.cs
index 3cde7fa..8d5b0b8 100644
--- a/FFMpegCore/FFMPEG/Pipes/PipeHelpers.cs
+++ b/FFMpegCore/FFMPEG/Pipes/PipeHelpers.cs
@@ -1,6 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.Text;
+using System.Runtime.InteropServices;
 
 namespace FFMpegCore.FFMPEG.Pipes
 {