diff --git a/filter/config.Y b/filter/config.Y
index 02de3416..7941500b 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -408,7 +408,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
 	SET, STRING, BGPMASK, BGPPATH, CLIST, ECLIST, LCLIST,
 	IF, THEN, ELSE, CASE,
 	TRUE, FALSE, RT, RO, UNKNOWN, GENERIC,
-	FROM, GW, NET, MASK, PROTO, SOURCE, SCOPE, DEST, IFNAME, IFINDEX,
+	FROM, GW, NET, MASK, PROTO, SOURCE, SCOPE, DEST, IFNAME, IFINDEX, NH_COST,
 	PREFERENCE,
 	ROA_CHECK, ASN, SRC,
 	IS_V4, IS_V6,
@@ -867,6 +867,7 @@ static_attr:
  | DEST    { $$ = f_new_static_attr(T_ENUM_RTD,   SA_DEST,	1); }
  | IFNAME  { $$ = f_new_static_attr(T_STRING,     SA_IFNAME,	1); }
  | IFINDEX { $$ = f_new_static_attr(T_INT,        SA_IFINDEX,	0); }
+ | NH_COST { $$ = f_new_static_attr(T_INT,        SA_NH_COST,	0); }
  ;
 
 term:
diff --git a/filter/filter.c b/filter/filter.c
index 37cf16a3..e6464a10 100644
--- a/filter/filter.c
+++ b/filter/filter.c
@@ -949,6 +949,7 @@ interpret(struct f_inst *what)
       case SA_DEST:	res.val.i = rta->dest; break;
       case SA_IFNAME:	res.val.s = rta->nh.iface ? rta->nh.iface->name : ""; break;
       case SA_IFINDEX:	res.val.i = rta->nh.iface ? rta->nh.iface->index : 0; break;
+      case SA_NH_COST:	res.val.i = rta->igp_metric; break;
 
       default:
 	bug("Invalid static attribute access (%x)", res.type);
diff --git a/filter/filter.h b/filter/filter.h
index a8c33287..4f9a5bbe 100644
--- a/filter/filter.h
+++ b/filter/filter.h
@@ -260,6 +260,7 @@ void val_format(struct f_val v, buffer *buf);
 #define SA_DEST    	 7
 #define SA_IFNAME  	 8
 #define SA_IFINDEX    	 9
+#define SA_NH_COST    	 10
 
 
 struct f_tree {