diff --git a/Source/OpenTK/Math/Matrix3d.cs b/Source/OpenTK/Math/Matrix3d.cs
index a91cdc8b..c08a7140 100644
--- a/Source/OpenTK/Math/Matrix3d.cs
+++ b/Source/OpenTK/Math/Matrix3d.cs
@@ -1,3 +1,13 @@
+#region --- License ---
+/* Licensed under the MIT/X11 license.
+ * Copyright (c) 2006-2008 the OpenTK Team.
+ * This notice may not be removed from any source distribution.
+ * See license.txt for licensing detailed licensing details.
+ * 
+ * Contributions by James Talton.
+ */
+#endregion
+
 using System;
 using System.Runtime.InteropServices;
 
diff --git a/Source/OpenTK/Math/Matrix4d.cs b/Source/OpenTK/Math/Matrix4d.cs
index a7c0fb25..e65f7a3d 100644
--- a/Source/OpenTK/Math/Matrix4d.cs
+++ b/Source/OpenTK/Math/Matrix4d.cs
@@ -1,3 +1,13 @@
+#region --- License ---
+/* Licensed under the MIT/X11 license.
+ * Copyright (c) 2006-2008 the OpenTK Team.
+ * This notice may not be removed from any source distribution.
+ * See license.txt for licensing detailed licensing details.
+ * 
+ * Contributions by James Talton.
+ */
+#endregion
+
 using System;
 using System.Runtime.InteropServices;
 
diff --git a/Source/OpenTK/Math/Quaterniond.cs b/Source/OpenTK/Math/Quaterniond.cs
index a53f03e4..482a70d1 100644
Binary files a/Source/OpenTK/Math/Quaterniond.cs and b/Source/OpenTK/Math/Quaterniond.cs differ
diff --git a/Source/OpenTK/Math/Vector3d.cs b/Source/OpenTK/Math/Vector3d.cs
index 2e1830f3..2c333f28 100644
Binary files a/Source/OpenTK/Math/Vector3d.cs and b/Source/OpenTK/Math/Vector3d.cs differ
diff --git a/Source/OpenTK/Math/Vector4d.cs b/Source/OpenTK/Math/Vector4d.cs
index 9ceb91dc..e7a64a84 100644
--- a/Source/OpenTK/Math/Vector4d.cs
+++ b/Source/OpenTK/Math/Vector4d.cs
@@ -1,3 +1,13 @@
+#region --- License ---
+/* Licensed under the MIT/X11 license.
+ * Copyright (c) 2006-2008 the OpenTK Team.
+ * This notice may not be removed from any source distribution.
+ * See license.txt for licensing detailed licensing details.
+ * 
+ * Contributions by James Talton.
+ */
+#endregion
+
 using System;
 using System.Diagnostics;
 using System.Collections.Generic;