diff --git a/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c b/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c
index 78837176b..aede8cabe 100644
--- a/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c
+++ b/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c
@@ -326,7 +326,7 @@ void wiz_client_op_test(int argc, char *argv[]) {
   KPrintf("wiz client to %d.%d.%d.%d:%d\n", ip[0], ip[1], ip[2], ip[3], port);
   uint8_t buf[g_wiznet_buf_size];
   sscanf(argv[3], "%s", buf);
-  while (true) {
+  while (1) {
     int ret =
         wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, SEND_DATA);
     if (ret <= 0) {