diff --git a/bgpd/bgp_aspath.h b/bgpd/bgp_aspath.h
index fc4dd6b..e8764cc 100644
--- a/bgpd/bgp_aspath.h
+++ b/bgpd/bgp_aspath.h
@@ -58,6 +58,7 @@
   /* String expression of AS path.  This string is used by vty output
      and AS path regular expression match.  */
   char *str;
+  unsigned short str_len;
 };
 
 #define ASPATH_STR_DEFAULT_LEN 32