diff --git a/servers/slapd/bconfig.c b/servers/slapd/bconfig.c
index d1085b6fcb..49d7f2660d 100644
--- a/servers/slapd/bconfig.c
+++ b/servers/slapd/bconfig.c
@@ -1613,6 +1613,7 @@ config_generic(ConfigArgs *c) {
 						return 1;
 					}
 					si = ch_malloc( sizeof(ServerID) );
+					BER_BVZERO( &si->si_url );
 					slap_serverID = num;
 				}
 				si->si_next = NULL;