diff --git a/zebra/zserv.c b/zebra/zserv.c
index 9e47f23..cb8dbcb 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -153,7 +153,7 @@
   stream_putl (s, ifp->mtu6);
   stream_putl (s, ifp->bandwidth);
 #ifdef HAVE_STRUCT_SOCKADDR_DL
-  stream_put (s, &ifp->sdl, sizeof (ifp->sdl));
+  stream_put (s, &ifp->sdl, sizeof (ifp->sdl_storage));
 #else
   stream_putl (s, ifp->hw_addr_len);
   if (ifp->hw_addr_len)