diff --git a/src/Skia/Avalonia.Skia/CustomRenderTarget.cs b/src/Skia/Avalonia.Skia/CustomRenderTarget.cs
index dd62237b0c..23a509a2a4 100644
--- a/src/Skia/Avalonia.Skia/CustomRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/CustomRenderTarget.cs
@@ -1,3 +1,6 @@
+// Copyright (c) The Avalonia Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
 using Avalonia.Platform;
 using Avalonia.Rendering;
 
diff --git a/src/Skia/Avalonia.Skia/ICustomSkiaGpu.cs b/src/Skia/Avalonia.Skia/ICustomSkiaGpu.cs
index 0cd2e346ff..751dd3c1e7 100644
--- a/src/Skia/Avalonia.Skia/ICustomSkiaGpu.cs
+++ b/src/Skia/Avalonia.Skia/ICustomSkiaGpu.cs
@@ -1,3 +1,6 @@
+// Copyright (c) The Avalonia Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
 using System.Collections.Generic;
 using SkiaSharp;
 
diff --git a/src/Skia/Avalonia.Skia/ICustomSkiaRenderSession.cs b/src/Skia/Avalonia.Skia/ICustomSkiaRenderSession.cs
index 70b3a49bcf..6a4591921e 100644
--- a/src/Skia/Avalonia.Skia/ICustomSkiaRenderSession.cs
+++ b/src/Skia/Avalonia.Skia/ICustomSkiaRenderSession.cs
@@ -1,3 +1,6 @@
+// Copyright (c) The Avalonia Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
 using System;
 using SkiaSharp;
 
diff --git a/src/Skia/Avalonia.Skia/ICustomSkiaRenderTarget.cs b/src/Skia/Avalonia.Skia/ICustomSkiaRenderTarget.cs
index 1609eaf7fe..f67b28b77b 100644
--- a/src/Skia/Avalonia.Skia/ICustomSkiaRenderTarget.cs
+++ b/src/Skia/Avalonia.Skia/ICustomSkiaRenderTarget.cs
@@ -1,3 +1,6 @@
+// Copyright (c) The Avalonia Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
 using System;
 
 namespace Avalonia.Skia