diff --git a/src/tun_route.c b/src/tun_route.c
index 7344873..7a23a4b 100644
--- a/src/tun_route.c
+++ b/src/tun_route.c
@@ -212,7 +212,7 @@ int tun_route_add(uint32_t ifindex, uint32_t network, uint8_t prefix_len) {
     char cmd[256];
     struct in_addr dest_addr;
     dest_addr.s_addr = dest;
-    snprintf(cmd, sizeof(cmd), "netsh interface ip add route %s/%d interface=%lu store=active",
+    snprintf(cmd, sizeof(cmd), "netsh interface ip add route %s/%d interface=%lu store=active >NUL 2>&1",
              inet_ntoa(dest_addr), prefix_len, (unsigned long)ifindex);
     int sys_ret = system(cmd);
     if (sys_ret == 0) {
@@ -257,7 +257,7 @@ int tun_route_del(uint32_t ifindex, uint32_t network, uint8_t prefix_len) {
     struct in_addr dest_addr;
     dest_addr.s_addr = htonl(network);
     char cmd[256];
-    snprintf(cmd, sizeof(cmd), "netsh interface ip delete route %s/%d interface=%lu store=active",
+    snprintf(cmd, sizeof(cmd), "netsh interface ip delete route %s/%d interface=%lu store=active >NUL 2>&1",
              inet_ntoa(dest_addr), prefix_len, (unsigned long)ifindex);
     int sys_ret = system(cmd);
     if (sys_ret == 0) {