diff --git a/libraries/AC_AttitudeControl/ControlMonitor.cpp b/libraries/AC_AttitudeControl/ControlMonitor.cpp
index 37fadc2600..5efdb1606c 100644
--- a/libraries/AC_AttitudeControl/ControlMonitor.cpp
+++ b/libraries/AC_AttitudeControl/ControlMonitor.cpp
@@ -1,6 +1,7 @@
 #include "AC_AttitudeControl.h"
 #include <AP_HAL/AP_HAL.h>
 #include <AP_Math/AP_Math.h>
+#include <AP_Logger/AP_Logger.h>
 
 /*
   code to monitor and report on the rate controllers, allowing for
@@ -24,15 +25,15 @@ void AC_AttitudeControl::control_monitor_filter_pid(float value, float &rms)
  */
 void AC_AttitudeControl::control_monitor_update(void)
 {
-    const AP_Logger::PID_Info &iroll  = get_rate_roll_pid().get_pid_info();
+    const AP_PIDInfo &iroll  = get_rate_roll_pid().get_pid_info();
     control_monitor_filter_pid(iroll.P + iroll.FF,  _control_monitor.rms_roll_P);
     control_monitor_filter_pid(iroll.D,             _control_monitor.rms_roll_D);
 
-    const AP_Logger::PID_Info &ipitch = get_rate_pitch_pid().get_pid_info();
+    const AP_PIDInfo &ipitch = get_rate_pitch_pid().get_pid_info();
     control_monitor_filter_pid(ipitch.P + ipitch.FF,  _control_monitor.rms_pitch_P);
     control_monitor_filter_pid(ipitch.D,             _control_monitor.rms_pitch_D);
 
-    const AP_Logger::PID_Info &iyaw   = get_rate_yaw_pid().get_pid_info();
+    const AP_PIDInfo &iyaw   = get_rate_yaw_pid().get_pid_info();
     control_monitor_filter_pid(iyaw.P + iyaw.D + iyaw.FF,  _control_monitor.rms_yaw);
 }