diff --git a/zebra/irdp.h b/zebra/irdp.h
index 2bf17f0..88453e9 100644
--- a/zebra/irdp.h
+++ b/zebra/irdp.h
@@ -132,7 +132,7 @@
   unsigned long irdp_sent;
   u_int16_t Lifetime;
 
- list AdvPrefList;
+ struct list *AdvPrefList;
 
 };