diff --git a/sw/airborne/subsystems/intermcu.h b/sw/airborne/subsystems/intermcu.h
index ecdbffc8e8..d57047293a 100644
--- a/sw/airborne/subsystems/intermcu.h
+++ b/sw/airborne/subsystems/intermcu.h
@@ -20,6 +20,10 @@
  *
  */
 
+/** @file subsystems/intermcu/intermcu.h
+ *  @brief Rotorcraft Inter-MCU interface
+ */
+
 #ifndef INTERMCU_ROTORCRAFT_H
 #define INTERMCU_ROTORCRAFT_H
 
diff --git a/sw/airborne/subsystems/intermcu/intermcu_ap.c b/sw/airborne/subsystems/intermcu/intermcu_ap.c
index d7341da04a..59b83ea1b5 100644
--- a/sw/airborne/subsystems/intermcu/intermcu_ap.c
+++ b/sw/airborne/subsystems/intermcu/intermcu_ap.c
@@ -20,6 +20,10 @@
  *
  */
 
+/** @file subsystems/intermcu/intermcu_ap.c
+ *  @brief Rotorcraft Inter-MCU on the autopilot
+ */
+
 #include "intermcu_ap.h"
 #include "intermcu_msg.h"
 #include "subsystems/radio_control.h"
diff --git a/sw/airborne/subsystems/intermcu/intermcu_ap.h b/sw/airborne/subsystems/intermcu/intermcu_ap.h
index 058a71a938..4898978fbc 100644
--- a/sw/airborne/subsystems/intermcu/intermcu_ap.h
+++ b/sw/airborne/subsystems/intermcu/intermcu_ap.h
@@ -20,6 +20,10 @@
  *
  */
 
+/** @file subsystems/intermcu/intermcu_ap.h
+ *  @brief Rotorcraft Inter-MCU on the autopilot
+ */
+
 #ifndef INTERMCU_AP_ROTORCRAFT_H
 #define INTERMCU_AP_ROTORCRAFT_H
 
diff --git a/sw/airborne/subsystems/intermcu/intermcu_fbw.c b/sw/airborne/subsystems/intermcu/intermcu_fbw.c
index 6dfb1add1f..ee2747b49c 100644
--- a/sw/airborne/subsystems/intermcu/intermcu_fbw.c
+++ b/sw/airborne/subsystems/intermcu/intermcu_fbw.c
@@ -20,6 +20,9 @@
  *
  */
 
+/** @file subsystems/intermcu/intermcu_fbw.c
+ *  @brief Rotorcraft Inter-MCU on FlyByWire
+ */
 
 #include "intermcu_fbw.h"
 #include "intermcu_msg.h"
diff --git a/sw/airborne/subsystems/intermcu/intermcu_fbw.h b/sw/airborne/subsystems/intermcu/intermcu_fbw.h
index 899144d7c3..82a23664b9 100644
--- a/sw/airborne/subsystems/intermcu/intermcu_fbw.h
+++ b/sw/airborne/subsystems/intermcu/intermcu_fbw.h
@@ -20,6 +20,10 @@
  *
  */
 
+/** @file subsystems/intermcu/intermcu_fbw.h
+ *  @brief Rotorcraft Inter-MCU on FlyByWire
+ */
+
 #ifndef INTERMCU_FBW_ROTORCRAFT_H
 #define INTERMCU_FBW_ROTORCRAFT_H