--- a/bfd.h
+++ b/bfd.h
@@ -299,13 +299,13 @@ typedef struct bfd_state_str_list_s {
 	int type;
 } bfd_state_str_list;
 
-struct bfd_vrf {
+extern struct bfd_vrf {
 	int vrf_id;
 	char name[MAXNAMELEN + 1];
 	UT_hash_handle vh;
 } bfd_vrf;
 
-struct bfd_iface {
+extern struct bfd_iface {
 	int vrf_id;
 	char ifname[MAXNAMELEN + 1];
 	UT_hash_handle ifh;
