diff --git a/uncloud_net/tasks.py b/uncloud_net/tasks.py
index 67cfa18..7d94f3b 100644
--- a/uncloud_net/tasks.py
+++ b/uncloud_net/tasks.py
@@ -25,7 +25,7 @@ def configure_wireguard_server_on_host(wg_name, config):
         fd.write(config)
 
     # Ensure the device exists
-    subprocess.run(f"ip link show {wg_name} || sudo ip link add {{wg_name}} type wireguard",
+    subprocess.run(f"ip link show {wg_name} >/dev/null || sudo ip link add {{wg_name}} type wireguard",
                    shell=True, check=True)
 
     # Ensure the config is correct