diff --git a/src/gb/gprs_bssgp.c b/src/gb/gprs_bssgp.c
index 142f589..518198f 100644
--- a/src/gb/gprs_bssgp.c
+++ b/src/gb/gprs_bssgp.c
@@ -1,6 +1,7 @@
-/* GPRS BSSGP protocol implementation as per 3GPP TS 08.18 */
-
-/* (C) 2009-2017 by Harald Welte <laforge@gnumonks.org>
+/*! \file gprs_bssgp.c
+ * GPRS BSSGP protocol implementation as per 3GPP TS 08.18. */
+/*
+ * (C) 2009-2017 by Harald Welte <laforge@gnumonks.org>
  *
  * All Rights Reserved
  *