diff --git a/sw/airborne/autopilot.h b/sw/airborne/autopilot.h
index 8d5ff4a98a..63111be0ce 100644
--- a/sw/airborne/autopilot.h
+++ b/sw/airborne/autopilot.h
@@ -116,6 +116,7 @@ extern bool_t power_switch;
 
 
 /* For backward compatibility with old airframe files */
+#include "airframe.h"
 #ifndef CONTROL_RATE
 #define CONTROL_RATE 20
 #endif