diff --git a/it87spi.c b/it87spi.c
index a81b1c0..1d5dd91 100644
--- a/it87spi.c
+++ b/it87spi.c
@@ -26,6 +26,7 @@
 #include "chipdrivers.h"
 #include "programmer.h"
 #include "hwaccess.h"
+#include "hwaccess_x86_io.h"
 #include "spi.h"
 
 #define ITE_SUPERIO_PORT1	0x2e