diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c
index 8410587348f1dcc5084cafc0df55937c0279e193..178155bf9db642463b82200cecf13b1fe7493001 100644
--- a/drivers/sbus/char/bbc_i2c.c
+++ b/drivers/sbus/char/bbc_i2c.c
@@ -18,6 +18,7 @@
 #include <asm/ebus.h>
 #include <asm/spitfire.h>
 #include <asm/bbc.h>
+#include <asm/io.h>
 
 #include "bbc_i2c.h"