diff --git a/FFMpegCore.Test/AudioTest.cs b/FFMpegCore.Test/AudioTest.cs
index bd53541..2f7e4e9 100644
--- a/FFMpegCore.Test/AudioTest.cs
+++ b/FFMpegCore.Test/AudioTest.cs
@@ -1,5 +1,4 @@
 using System;
-using FFMpegCore.Enums;
 using FFMpegCore.Test.Resources;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System.IO;
diff --git a/FFMpegCore.Test/Resources/TestResources.cs b/FFMpegCore.Test/Resources/TestResources.cs
index f37ed0c..6277dd3 100644
--- a/FFMpegCore.Test/Resources/TestResources.cs
+++ b/FFMpegCore.Test/Resources/TestResources.cs
@@ -1,8 +1,4 @@
-using System;
-using System.IO;
-using FFMpegCore.Enums;
-
-namespace FFMpegCore.Test.Resources
+namespace FFMpegCore.Test.Resources
 {
     public enum AudioType
     {
diff --git a/FFMpegCore/FFMpeg/Arguments/SetMirroringArgument.cs b/FFMpegCore/FFMpeg/Arguments/SetMirroringArgument.cs
index f042f77..fff98f3 100644
--- a/FFMpegCore/FFMpeg/Arguments/SetMirroringArgument.cs
+++ b/FFMpegCore/FFMpeg/Arguments/SetMirroringArgument.cs
@@ -1,7 +1,5 @@
 using FFMpegCore.Enums;
 using System;
-using System.Collections.Generic;
-using System.Text;
 
 namespace FFMpegCore.Arguments
 {
diff --git a/FFMpegCore/FFMpeg/Arguments/SizeArgument.cs b/FFMpegCore/FFMpeg/Arguments/SizeArgument.cs
index 04fe615..924c0a0 100644
--- a/FFMpegCore/FFMpeg/Arguments/SizeArgument.cs
+++ b/FFMpegCore/FFMpeg/Arguments/SizeArgument.cs
@@ -1,5 +1,4 @@
 using System.Drawing;
-using FFMpegCore.Enums;
 
 namespace FFMpegCore.Arguments
 {
diff --git a/FFMpegCore/FFMpeg/Pipes/StreamPipeSource.cs b/FFMpegCore/FFMpeg/Pipes/StreamPipeSource.cs
index 87eaee7..99bc081 100644
--- a/FFMpegCore/FFMpeg/Pipes/StreamPipeSource.cs
+++ b/FFMpegCore/FFMpeg/Pipes/StreamPipeSource.cs
@@ -9,11 +9,11 @@ namespace FFMpegCore.Pipes
     /// </summary>
     public class StreamPipeSource : IPipeSource
     {
-        public System.IO.Stream Source { get; }
+        public Stream Source { get; }
         public int BlockSize { get; } = 4096;
         public string StreamFormat { get; } = string.Empty;
 
-        public StreamPipeSource(System.IO.Stream source)
+        public StreamPipeSource(Stream source)
         {
             Source = source;
         }