diff --git a/examples/flow_classify/flow_classify.c b/examples/flow_classify/flow_classify.c
index 5c3e111cfa..94c1553648 100644
--- a/examples/flow_classify/flow_classify.c
+++ b/examples/flow_classify/flow_classify.c
@@ -284,7 +284,7 @@ lcore_main(struct flow_classifier *cls_app)
 	 * for best performance.
 	 */
 	RTE_ETH_FOREACH_DEV(port)
-		if (rte_eth_dev_socket_id(port) > 0 &&
+		if (rte_eth_dev_socket_id(port) >= 0 &&
 			rte_eth_dev_socket_id(port) != (int)rte_socket_id()) {
 			printf("\n\n");
 			printf("WARNING: port %u is on remote NUMA node\n",