Address review comments
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 4049a27..3f11328 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -2527,11 +2527,11 @@
     if( opt.cache_timeout != -1 )
         mbedtls_ssl_cache_set_timeout( &cache, opt.cache_timeout );
 
-#if defined(MBEDTLS_SSL_SESSION_CACHE)
+#if !defined(MBEDTLS_SSL_NO_SESSION_CACHE)
     mbedtls_ssl_conf_session_cache( &conf, &cache,
                                    mbedtls_ssl_cache_get,
                                    mbedtls_ssl_cache_set );
-#endif /* MBEDTLS_SSL_SESSION_CACHE */
+#endif /* !MBEDTLS_SSL_NO_SESSION_CACHE */
 #endif
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)