diff --git a/bgpd/bgp_packet.c b/bgpd/bgp_packet.c
index 4282027..b4cd130 100644
--- a/bgpd/bgp_packet.c
+++ b/bgpd/bgp_packet.c
@@ -2253,7 +2253,7 @@
 	  bgp_notify_send_with_data (peer,
 				     BGP_NOTIFY_HEADER_ERR,
 			  	     BGP_NOTIFY_HEADER_BAD_MESLEN,
-				     notify_data_length, 2);
+				     (u_char *) notify_data_length, 2);
 	  goto done;
 	}