diff --git a/drivers/staging/ipack/ipack.c b/drivers/staging/ipack/ipack.c
index ff907facc005..b3736c0a1086 100644
--- a/drivers/staging/ipack/ipack.c
+++ b/drivers/staging/ipack/ipack.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/idr.h>
+#include <asm/io.h>
 #include "ipack.h"
 
 #define to_ipack_dev(device) container_of(device, struct ipack_device, dev)