diff --git a/lib/zebra.h b/lib/zebra.h
index a5ed20e..e88a629 100644
--- a/lib/zebra.h
+++ b/lib/zebra.h
@@ -522,6 +522,9 @@
 typedef u_int16_t zebra_size_t;
 typedef u_int16_t zebra_command_t;
 
+/* VRF ID type. */
+typedef u_int16_t vrf_id_t;
+
 /* FIFO -- first in first out structure and macros.  */
 struct fifo
 {