diff --git a/include/uapi/linux/virtio_pmem.h b/include/uapi/linux/virtio_pmem.h
index b022787ffb94be9bdcaa36a1e4433921fa27b358..d676b3620383c3cb76be7b4aa3651b1a99e5ded9 100644
--- a/include/uapi/linux/virtio_pmem.h
+++ b/include/uapi/linux/virtio_pmem.h
@@ -15,8 +15,8 @@
 #include <linux/virtio_config.h>
 
 struct virtio_pmem_config {
-	__u64 start;
-	__u64 size;
+	__le64 start;
+	__le64 size;
 };
 
 #define VIRTIO_PMEM_REQ_TYPE_FLUSH      0