diff --git a/include/boost/python/opaque_pointer_converter.hpp b/include/boost/python/opaque_pointer_converter.hpp
index 9fd3e84e..ea635e0a 100644
--- a/include/boost/python/opaque_pointer_converter.hpp
+++ b/include/boost/python/opaque_pointer_converter.hpp
@@ -1,3 +1,8 @@
+// Copyright Gottfried Ganßauge 2003. Permission to copy, use,
+// modify, sell and distribute this software is granted provided this
+// copyright notice appears in all copies. This software is provided
+// "as is" without express or implied warranty, and with no claim as
+// to its suitability for any purpose.
 /*
  * Generic Conversion of opaque C++-pointers to a Python-Wrapper.
  */
diff --git a/include/boost/python/return_opaque_pointer.hpp b/include/boost/python/return_opaque_pointer.hpp
index 863c92bf..29fb8672 100644
--- a/include/boost/python/return_opaque_pointer.hpp
+++ b/include/boost/python/return_opaque_pointer.hpp
@@ -1,3 +1,8 @@
+// Copyright Gottfried Ganßauge 2003. Permission to copy, use,
+// modify, sell and distribute this software is granted provided this
+// copyright notice appears in all copies. This software is provided
+// "as is" without express or implied warranty, and with no claim as
+// to its suitability for any purpose.
 /*
  * Generic Return value converter generator for opaque C++-pointers
  */