diff --git a/libraries/AP_HAL/board/sitl.h b/libraries/AP_HAL/board/sitl.h
index 0f45103562..6f0780a3d6 100644
--- a/libraries/AP_HAL/board/sitl.h
+++ b/libraries/AP_HAL/board/sitl.h
@@ -47,7 +47,7 @@
 
 #define HAL_HAVE_BOARD_VOLTAGE 1
 #define HAL_HAVE_SERVO_VOLTAGE 1
-#define HAL_HAVE_SAFETY_SWITCH 0
+#define HAL_HAVE_SAFETY_SWITCH 1
 
 // only include if compiling C++ code
 #ifdef __cplusplus