diff --git a/src/lib/plugin.c b/src/lib/plugin.c
index 364dc3b7a..453b902f3 100644
--- a/src/lib/plugin.c
+++ b/src/lib/plugin.c
@@ -1,3 +1,23 @@
+/*
+  plugin.c  -  Cinelerra Plugin loader
+
+  Copyright (C)         CinelerraCV
+    2007,               Christian Thaeter <ct@pipapo.org>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
 #include <stdio.h>
 #include <search.h>
 #include <string.h>
diff --git a/src/lib/plugin.h b/src/lib/plugin.h
index 573d4a6ca..cffeb48e0 100644
--- a/src/lib/plugin.h
+++ b/src/lib/plugin.h
@@ -1,3 +1,23 @@
+/*
+  plugin.h  -  Plugin loader
+
+  Copyright (C)         CinelerraCV
+    2007,               Christian Thaeter <ct@pipapo.org>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
 #ifndef CINELERRA_PLUGIN_H
 #define CINELERRA_PLUGIN_H