diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index 9d8588c..5836c1f 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -439,8 +439,7 @@
 
         ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
         ssl_set_dbg( &ssl, my_debug, stdout );
-        ssl_set_bio( &ssl, net_recv, &server_fd,
-                net_send, &server_fd );
+        ssl_set_bio_timeout( &ssl, &server_fd, net_send, net_recv, NULL, 0 );
 
         if( ( ret = ssl_set_own_cert( &ssl, &clicert, &pkey ) ) != 0 )
         {