diff --git a/libraries/libldap/open.c b/libraries/libldap/open.c
index 29ee135349..944e1f4970 100644
--- a/libraries/libldap/open.c
+++ b/libraries/libldap/open.c
@@ -286,8 +286,8 @@ ldap_int_open_connection(
 			sasl_host = ldap_host_connected_to( conn->lconn_sb );
 #endif
 			break;
-#ifdef LDAP_CONNECTIONLESS
 
+#ifdef LDAP_CONNECTIONLESS
 		case LDAP_PROTO_UDP:
 			port = srv->lud_port;
 
@@ -312,6 +312,10 @@ ldap_int_open_connection(
 #endif
 			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_udp,
 				LBER_SBIOD_LEVEL_PROVIDER, NULL );
+
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_readahead,
+				LBER_SBIOD_LEVEL_PROVIDER, NULL );
+
 			break;
 #endif
 		case LDAP_PROTO_IPC:
@@ -337,9 +341,6 @@ ldap_int_open_connection(
 			break;
 	}
 
-	ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_readahead,
-		LBER_SBIOD_LEVEL_PROVIDER, NULL );
-
 #ifdef LDAP_DEBUG
 	ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
 		INT_MAX, (void *)"ldap_" );