diff --git a/libraries/AP_VisualOdom/AP_VisualOdom.cpp b/libraries/AP_VisualOdom/AP_VisualOdom.cpp
index 5c963e58beb..1a261ccf8c3 100644
--- a/libraries/AP_VisualOdom/AP_VisualOdom.cpp
+++ b/libraries/AP_VisualOdom/AP_VisualOdom.cpp
@@ -16,6 +16,7 @@
 #include "AP_VisualOdom.h"
 #include "AP_VisualOdom_Backend.h"
 #include "AP_VisualOdom_MAV.h"
+#include <AP_Logger/AP_Logger.h>
 
 extern const AP_HAL::HAL &hal;
 
diff --git a/libraries/AP_VisualOdom/AP_VisualOdom.h b/libraries/AP_VisualOdom/AP_VisualOdom.h
index c62f8347dea..184ea42542c 100644
--- a/libraries/AP_VisualOdom/AP_VisualOdom.h
+++ b/libraries/AP_VisualOdom/AP_VisualOdom.h
@@ -18,7 +18,6 @@
 #include <AP_HAL/AP_HAL.h>
 #include <AP_Param/AP_Param.h>
 #include <AP_Math/AP_Math.h>
-#include <AP_SerialManager/AP_SerialManager.h>
 #include <GCS_MAVLink/GCS.h>
 
 class AP_VisualOdom_Backend;