diff --git a/drivers/macintosh/ams/ams.h b/drivers/macintosh/ams/ams.h
index 2c159c8844c1..4b93c766a551 100644
--- a/drivers/macintosh/ams/ams.h
+++ b/drivers/macintosh/ams/ams.h
@@ -6,6 +6,7 @@
 #include <linux/input.h>
 #include <linux/kthread.h>
 #include <linux/mutex.h>
+#include <linux/platform_device.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/of_device.h>