diff --git a/src/ctrl/control_cmd.c b/src/ctrl/control_cmd.c
index d706995..836bb71 100644
--- a/src/ctrl/control_cmd.c
+++ b/src/ctrl/control_cmd.c
@@ -1,5 +1,6 @@
-/* SNMP-like status interface
- *
+/*! \file control_cmd.c
+ * SNMP-like status interface. */
+/*
  * (C) 2010-2011 by Daniel Willmann <daniel@totalueberwachung.de>
  * (C) 2010-2011 by On-Waves
  *
diff --git a/src/ctrl/control_if.c b/src/ctrl/control_if.c
index 5d04cdf..47efb25 100644
--- a/src/ctrl/control_if.c
+++ b/src/ctrl/control_if.c
@@ -1,5 +1,6 @@
-/* SNMP-like status interface
- *
+/*! \file control_if.c
+ * SNMP-like status interface. */
+/*
  * (C) 2010-2011 by Daniel Willmann <daniel@totalueberwachung.de>
  * (C) 2010-2011 by On-Waves
  *
diff --git a/src/ctrl/control_vty.c b/src/ctrl/control_vty.c
index a67dbe2..a968bc0 100644
--- a/src/ctrl/control_vty.c
+++ b/src/ctrl/control_vty.c
@@ -1,5 +1,6 @@
-/* VTY configuration for Control interface
- *
+/*! \file control_vty.c
+ * VTY configuration for Control interface. */
+/*
  * (C) 2016 by sysmocom s.m.f.c. GmbH <info@sysmocom.de>
  *
  * All Rights Reserved
diff --git a/src/ctrl/fsm_ctrl_commands.c b/src/ctrl/fsm_ctrl_commands.c
index 6c3ecde..38fbd1e 100644
--- a/src/ctrl/fsm_ctrl_commands.c
+++ b/src/ctrl/fsm_ctrl_commands.c
@@ -1,3 +1,5 @@
+/*! \file fsm_ctrl_commands.c */
+
 #include <string.h>
 #include <errno.h>