diff --git a/filter/f-inst.c b/filter/f-inst.c
index 6a0cdfde..2fed0543 100644
--- a/filter/f-inst.c
+++ b/filter/f-inst.c
@@ -918,17 +918,17 @@
 
       case T_IP:
 	a = ea_set_attr(&fs->rte->attrs,
-	    EA_LITERAL_STORE_ADATA(da, 0, &v1.val.ip, sizeof(ip_addr)));
+	    EA_LITERAL_STORE_ADATA(da, da->flags, &v1.val.ip, sizeof(ip_addr)));
 	break;
 
       case T_STRING:
 	a = ea_set_attr(&fs->rte->attrs,
-	    EA_LITERAL_STORE_ADATA(da, 0, v1.val.s, strlen(v1.val.s) + 1));
+	    EA_LITERAL_STORE_ADATA(da, da->flags, v1.val.s, strlen(v1.val.s) + 1));
 	break;
 
       default:
 	a = ea_set_attr(&fs->rte->attrs,
-	    EA_LITERAL_GENERIC(da->id, da->type, 0, .u = v1.val.bval));
+	    EA_LITERAL_GENERIC(da->id, da->type, da->flags, .u = v1.val.bval));
 	break;
       }
 
diff --git a/lib/route.h b/lib/route.h
index 61f7f342..07ef898f 100644
--- a/lib/route.h
+++ b/lib/route.h
@@ -259,6 +259,7 @@ struct ea_class {
   uint id;				/* Autoassigned attribute ID */ \
   uint uc;				/* Reference count */ \
   btype type;				/* Data type ID */ \
+  u16 flags;				/* Protocol-dependent flags */ \
   uint readonly:1;			/* This attribute can't be changed by filters */ \
   uint conf:1;				/* Requested by config */ \
   uint hidden:1;			/* Technical attribute, do not show, do not expose to filters */ \
diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c
index 6c4d9dcd..78acfc69 100644
--- a/proto/bgp/attrs.c
+++ b/proto/bgp/attrs.c
@@ -70,7 +70,6 @@ union bgp_attr_desc {
   struct ea_class class;
   struct {
     EA_CLASS_INSIDE;
-    uint flags;
     void (*export)(struct bgp_export_state *s, eattr *a);
     int  (*encode)(struct bgp_write_state *s, eattr *a, byte *buf, uint size);
     void (*decode)(struct bgp_parse_state *s, uint code, uint flags, byte *data, uint len, ea_list **to);