diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index 011c03f..51f8c53 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -51,6 +51,7 @@
 	u32 map[MAX_NODES / WSIZE];
 };
 
+extern struct tipc_node_map tipc_bcast_nmap;
 
 #define PLSIZE 32