--- a/drv_RouterBoard.c
+++ b/drv_RouterBoard.c
@@ -106,7 +106,7 @@
 #include <string.h>
 #include <errno.h>
 #include <unistd.h>
-#include <sys/io.h>
+#include <asm/io.h>
 
 #include "debug.h"
 #include "cfg.h"