diff --git a/src/calcelestial.c b/src/calcelestial.c
index ff48203..94d78a6 100644
--- a/src/calcelestial.c
+++ b/src/calcelestial.c
@@ -9,20 +9,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #define _XOPEN_SOURCE 700
diff --git a/src/geonames.c b/src/geonames.c
index 25afb71..edc77b8 100644
--- a/src/geonames.c
+++ b/src/geonames.c
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <stdio.h>
diff --git a/src/geonames.h b/src/geonames.h
index 850ef65..9bfe457 100644
--- a/src/geonames.h
+++ b/src/geonames.h
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _GEONAMES_H_
diff --git a/src/geonames_main.c b/src/geonames_main.c
index 36d4d62..4cd0f90 100644
--- a/src/geonames_main.c
+++ b/src/geonames_main.c
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <stdio.h>
diff --git a/src/helpers.c b/src/helpers.c
index c52e45c..1bb2b16 100644
--- a/src/helpers.c
+++ b/src/helpers.c
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <stdlib.h>
diff --git a/src/helpers.h b/src/helpers.h
index 5ce14d5..653aa8d 100644
--- a/src/helpers.h
+++ b/src/helpers.h
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _HELPERS_H_
diff --git a/src/objects.c b/src/objects.c
index abebbe1..25b3ec7 100644
--- a/src/objects.c
+++ b/src/objects.c
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <string.h>
diff --git a/src/objects.h b/src/objects.h
index a26a278..16ca179 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -7,20 +7,20 @@
  * @link	http://www.steffenvogel.de/2012/03/14/cron-jobs-fur-sonnenauf-untergang/
  */
 /*
- * This file is part of sun
+ * This file is part of calcelestial
  *
- * sun is free software: you can redistribute it and/or modify
+ * calcelestial 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
  * any later version.
  *
- * sun is distributed in the hope that it will be useful,
+ * calcelestial 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 sun. If not, see <http://www.gnu.org/licenses/>.
+ * along with calcelestial. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _OBJECTS_H_