diff --git a/libraries/AP_HAL_PX4/HAL_PX4_Class.h b/libraries/AP_HAL_PX4/HAL_PX4_Class.h
index 4cae3c5a9946cac4b9b1c4b5f3d77bcf079d4dca..a28169b29e83739b72793a0abb59e7d447febfe0 100644
--- a/libraries/AP_HAL_PX4/HAL_PX4_Class.h
+++ b/libraries/AP_HAL_PX4/HAL_PX4_Class.h
@@ -8,6 +8,7 @@
 
 #include <AP_HAL_PX4.h>
 #include "AP_HAL_PX4_Namespace.h"
+#include <systemlib/visibility.h>
 #include <systemlib/perf_counter.h>
 
 class HAL_PX4 : public AP_HAL::HAL {