diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c
index 55b2002753f2..3854df7d6629 100644
--- a/drivers/staging/android/ion/ion_dummy_driver.c
+++ b/drivers/staging/android/ion/ion_dummy_driver.c
@@ -20,6 +20,7 @@
 #include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/sizes.h>
+#include <linux/io.h>
 #include "ion.h"
 #include "ion_priv.h"