Move ssl_set_ca_chain() to work on config
diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
index 2302f06..61b9dc9 100644
--- a/programs/ssl/ssl_server.c
+++ b/programs/ssl/ssl_server.c
@@ -214,7 +214,7 @@
                                    mbedtls_ssl_cache_set, &cache );
 #endif
 
-    mbedtls_ssl_set_ca_chain( &ssl, srvcert.next, NULL, NULL );
+    mbedtls_ssl_set_ca_chain( &conf, srvcert.next, NULL );
     if( ( ret = mbedtls_ssl_set_own_cert( &ssl, &srvcert, &pkey ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ssl_set_own_cert returned %d\n\n", ret );