diff --git a/os/hal/include/hal.h b/os/hal/include/hal.h
index d8de4d936..9094678f5 100644
--- a/os/hal/include/hal.h
+++ b/os/hal/include/hal.h
@@ -29,6 +29,7 @@
 #ifndef _HAL_H_
 #define _HAL_H_
 
+#include "ch.h"
 #include "board.h"
 #include "halconf.h"