diff --git a/bgpd/bgp_attr.h b/bgpd/bgp_attr.h
index 124c450..0734bc2 100644
--- a/bgpd/bgp_attr.h
+++ b/bgpd/bgp_attr.h
@@ -32,6 +32,7 @@
 
 #define BGP_MED_MAX UINT32_MAX
 
+
 /* BGP Attribute type range. */
 #define BGP_ATTR_TYPE_RANGE     256
 #define BGP_ATTR_BITMAP_SIZE    (BGP_ATTR_TYPE_RANGE / BITMAP_NBBY)
@@ -45,6 +46,8 @@
 /* BGP attribute header must bigger than 2. */
 #define BGP_ATTR_MIN_LEN        2       /* Attribute flag and type. */
 
+#define BGP_ATTR_DEFAULT_WEIGHT 32768
+
 /* BGP attribute structure. */
 struct attr
 {