diff --git a/pandaapp/src/pandaappbase/pandaappbase.h b/pandaapp/src/pandaappbase/pandaappbase.h
index 539cb623da..d3a7e687ff 100644
--- a/pandaapp/src/pandaappbase/pandaappbase.h
+++ b/pandaapp/src/pandaappbase/pandaappbase.h
@@ -1,5 +1,25 @@
-/* Filename: pandaappbase.h
- * Created by:  drose (12Sep00)
- *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- *
+// Filename: pandaappbase.h
+// Created by:  drose (12Sep00)
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) Carnegie Mellon University.  All rights reserved.
+//
+// All use of this software is subject to the terms of the revised BSD
+// license.  You should have received a copy of this license along
+// with this source code in a file named "LICENSE."
+//
+////////////////////////////////////////////////////////////////////
+
+/* This file is included at the beginning of every header file and/or
+   C or C++ file.  It must be compilable for C as well as C++ files,
+   so no C++-specific code or syntax can be put here. */
+
+#ifndef PANDAAPPBASE_H
+#define PANDAAPPBASE_H
+
+#include "pandatoolbase.h"
+#include "pandaappsymbols.h"
+
+#endif
+