1 files changed, 5 insertions, 0 deletions
diff --git a/lib/prefix.h b/lib/prefix.h
index 85488ccea7..4878fcfdd2 100644
--- a/lib/prefix.h
+++ b/lib/prefix.h
@@ -83,6 +83,11 @@ struct prefix
       struct in_addr adv_router;
     } lp;
     struct ethaddr prefix_eth;	/* AF_ETHERNET */
+    struct
+    {
+      struct in_addr src;
+      struct in_addr grp;
+    } sg;
     u_char val[8];
     uintptr_t ptr;
   } u __attribute__ ((aligned (8)));