diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 4b321842d65f501f0c5b05f289a934a908e5f6a3..c894267ff5dd4fda1d95f0e0ef3fe8c2b4010e6d 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -23,7 +23,7 @@ typedef union
 struct xfrm_id
 {
 	xfrm_address_t	daddr;
-	__u32		spi;
+	__be32		spi;
 	__u8		proto;
 };