diff --git a/src/gsm/sysinfo.c b/src/gsm/sysinfo.c
index 201acfc..b73bb0c 100644
--- a/src/gsm/sysinfo.c
+++ b/src/gsm/sysinfo.c
@@ -1,7 +1,8 @@
-/* GSM 04.08 System Information (SI) encoding and decoding
+/*! \file sysinfo.c
+ * GSM 04.08 System Information (SI) encoding and decoding.
  * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
-
-/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
+/*
+ * (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
  *
  * All Rights Reserved
  *