diff --git a/src/openscenegraph-4-noopenthreads.patch b/src/openscenegraph-4-noopenthreads.patch
index f01f1f63..f88f084f 100644
--- a/src/openscenegraph-4-noopenthreads.patch
+++ b/src/openscenegraph-4-noopenthreads.patch
@@ -1,3 +1,6 @@
+This file is part of MXE.
+See index.html for further information.
+
 diff -burN OpenSceneGraph-3.4.0.orig/src/CMakeLists.txt OpenSceneGraph-3.4.0/src/CMakeLists.txt
 --- OpenSceneGraph-3.4.0.orig/src/CMakeLists.txt	2015-12-03 11:53:17.597970954 +0100
 +++ OpenSceneGraph-3.4.0/src/CMakeLists.txt	2015-12-03 11:55:07.941146106 +0100
diff --git a/src/openthreads-1-fixcmake.patch b/src/openthreads-1-fixcmake.patch
index 3315d27b..989b3afe 100644
--- a/src/openthreads-1-fixcmake.patch
+++ b/src/openthreads-1-fixcmake.patch
@@ -1,3 +1,6 @@
+This file is part of MXE.
+See index.html for further information.
+
 diff -burN OpenSceneGraph-3.4.0.orig/CMakeLists.txt OpenSceneGraph-3.4.0/CMakeLists.txt
 --- OpenSceneGraph-3.4.0.orig/CMakeLists.txt	2015-08-12 08:38:59.000000000 +0200
 +++ OpenSceneGraph-3.4.0/CMakeLists.txt	2015-12-02 16:42:16.565976939 +0100