diff --git a/lib/libnetlink.c b/lib/libnetlink.c
index 8e8c8b9..09b4277 100644
--- a/lib/libnetlink.c
+++ b/lib/libnetlink.c
@@ -94,8 +94,8 @@
 	struct {
 		struct nlmsghdr nlh;
 		struct rtgenmsg g;
-		__u16 align_rta;	/* attribute has to be 32bit aligned */
-		struct rtattr ext_req;
+		/* attribute has to be NLMSG aligned */
+		struct rtattr ext_req __attribute__ ((aligned(NLMSG_ALIGNTO)));
 		__u32 ext_filter_mask;
 	} req;