diff --git a/c_gen/templates/bsn_ext.h b/c_gen/templates/bsn_ext.h
index 6afa211..d810ab3 100644
--- a/c_gen/templates/bsn_ext.h
+++ b/c_gen/templates/bsn_ext.h
@@ -25,7 +25,7 @@
 :: # EPL for the specific language governing permissions and limitations
 :: # under the EPL.
 ::
-/* Copyright 2013, Big Switch Networks, Inc. */
+:: include('_copyright.c')
 
 /**
  * BSN OpenFlow extension definition header file