diff --git a/libraries/AP_Hott_Telem/AP_Hott_Telem.cpp b/libraries/AP_Hott_Telem/AP_Hott_Telem.cpp
index b013f0f7f3..33ff29bf47 100644
--- a/libraries/AP_Hott_Telem/AP_Hott_Telem.cpp
+++ b/libraries/AP_Hott_Telem/AP_Hott_Telem.cpp
@@ -34,7 +34,7 @@
 #include <AP_RTC/AP_RTC.h>
 #include <AP_Notify/AP_Notify.h>
 #include <AP_Mission/AP_Mission.h>
-#include <AP_InertialSensor/AP_InertialSensor.h>
+#include <AP_SerialManager/AP_SerialManager.h>
 #include <stdio.h>
 
 #define PROT_BINARY   0x80
diff --git a/libraries/AP_Hott_Telem/AP_Hott_Telem.h b/libraries/AP_Hott_Telem/AP_Hott_Telem.h
index 606c4bc5a5..9d6d52bff0 100644
--- a/libraries/AP_Hott_Telem/AP_Hott_Telem.h
+++ b/libraries/AP_Hott_Telem/AP_Hott_Telem.h
@@ -15,7 +15,6 @@
 #pragma once
 
 #include <AP_HAL/AP_HAL.h>
-#include <AP_SerialManager/AP_SerialManager.h>
 
 #ifndef HAL_HOTT_TELEM_ENABLED
 #define HAL_HOTT_TELEM_ENABLED !HAL_MINIMIZE_FEATURES