diff --git a/src/gswe-types.c b/src/gswe-types.c
index 92803c5..6c23d8e 100644
--- a/src/gswe-types.c
+++ b/src/gswe-types.c
@@ -1,3 +1,20 @@
+/* gswe-types.h - Basic types of SWE-GLib
+ *
+ * Copyright © 2013  Gergely Polonkai
+ *
+ * SWE-GLib 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * SWE-GLib 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 library; if not, see <http://www.gnu.org/licenses/>.
+ */
 #include "gswe-types.h"
 
 static GsweMoonPhaseData *