diff --git a/ripngd/ripngd.h b/ripngd/ripngd.h
index 28ca41b..6cbbd84 100644
--- a/ripngd/ripngd.h
+++ b/ripngd/ripngd.h
@@ -358,7 +358,7 @@
 extern void ripng_route_map_reset (void);
 extern void ripng_terminate (void);
  /* zclient_init() is done by ripng_zebra.c:zebra_init() */
-extern void zebra_init (void);
+extern void zebra_init (struct thread_master *);
 extern void ripng_zclient_start (void);
 extern void ripng_zclient_reset (void);
 extern void ripng_offset_init (void);