diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index 1e5ef37..fb81287 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -423,7 +423,7 @@
         mbedtls_ssl_set_dbg( &conf, my_debug, stdout );
         mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
 
-        if( ( ret = mbedtls_ssl_set_own_cert( &ssl, &clicert, &pkey ) ) != 0 )
+        if( ( ret = mbedtls_ssl_set_own_cert( &conf, &clicert, &pkey ) ) != 0 )
         {
             mbedtls_printf( " failed\n  ! mbedtls_ssl_set_own_cert returned %d\n\n", ret );
             goto ssl_exit;