diff --git a/libraries/APM_Compass/APM_Compass.cpp b/libraries/APM_Compass/APM_Compass.cpp
index fb695da044..baac867a86 100644
--- a/libraries/APM_Compass/APM_Compass.cpp
+++ b/libraries/APM_Compass/APM_Compass.cpp
@@ -35,6 +35,7 @@ extern "C" {
 
 #include <Wire.h>
 #include "APM_Compass.h"
+#include "../AP_Math/AP_Math.h"
 
 #define CompassAddress 0x1E
 
@@ -162,4 +163,4 @@ void APM_Compass_Class::SetOrientation(int newOrientation)
 
 
 // make one instance for the user to use
-APM_Compass_Class APM_Compass;
\ No newline at end of file
+APM_Compass_Class APM_Compass;
diff --git a/libraries/APM_Compass/APM_Compass.h b/libraries/APM_Compass/APM_Compass.h
index 8f7a957e14..e6cf5d904b 100644
--- a/libraries/APM_Compass/APM_Compass.h
+++ b/libraries/APM_Compass/APM_Compass.h
@@ -1,8 +1,6 @@
 #ifndef APM_Compass_h
 #define APM_Compass_h
 
-#include <AP_Math.h>
-
 #define APM_COMPASS_COMPONENTS_UP_PINS_BACK 0
 #define APM_COMPASS_COMPONENTS_UP_PINS_LEFT 1
 #define APM_COMPASS_COMPONENTS_UP_PINS_FORWARD 2
@@ -33,4 +31,4 @@ class APM_Compass_Class
 
 extern APM_Compass_Class APM_Compass;
 
-#endif
\ No newline at end of file
+#endif