diff --git a/sw/airborne/modules/gps/gps_i2c.c b/sw/airborne/modules/gps/gps_i2c.c
index 37c4d76759..7165b5e5c1 100644
--- a/sw/airborne/modules/gps/gps_i2c.c
+++ b/sw/airborne/modules/gps/gps_i2c.c
@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2016 Michael Sierra <sierramichael.a@gmail.com>
+ * Copyright (C) 2009  ENAC, Pascal Brisset, Michel Gorraz,Gautier Hattenberger,
+ *               2016 Michael Sierra <sierramichael.a@gmail.com>
  *
  * This file is part of paparazzi.
  *
diff --git a/sw/airborne/modules/gps/gps_i2c.h b/sw/airborne/modules/gps/gps_i2c.h
index 707b0b2d93..242c7e369e 100644
--- a/sw/airborne/modules/gps/gps_i2c.h
+++ b/sw/airborne/modules/gps/gps_i2c.h
@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2016 Michael Sierra <sierramichael.a@gmail.com>
+ * Copyright (C) 2009  ENAC, Pascal Brisset, Michel Gorraz,Gautier Hattenberger,
+ *               2016 Michael Sierra <sierramichael.a@gmail.com>
  *
  * This file is part of paparazzi.
  *