diff --git a/drivers/staging/greybus/sysfs.c b/drivers/staging/greybus/sysfs.c
index 2393a6a..a24a9ed 100644
--- a/drivers/staging/greybus/sysfs.c
+++ b/drivers/staging/greybus/sysfs.c
@@ -145,7 +145,7 @@
 	struct greybus_device *gdev = to_greybus_device(dev);
 
 	return sprintf(buf, "%llX\n",
-		      (unsigned long long)gdev->serial_number.serial_number);
+		      (unsigned long long)le64_to_cpu(gdev->serial_number.serial_number));
 }
 static DEVICE_ATTR_RO(serial_number);