diff --git a/src/network/tun_win.rs b/src/network/tun_win.rs
index 72dd0dc..566c339 100644
--- a/src/network/tun_win.rs
+++ b/src/network/tun_win.rs
@@ -51,7 +51,8 @@ impl  Iface {
         let ip = ip_to_string(&ip);
         let netbit = ip_to_string(&net_bit_len_to_mask(netbit));
 
-        let res = Command::new("netsh")
+        let mut cmd = Command::new("netsh");
+        let command = cmd
             .arg("interface")
             .arg("ip")
             .arg("set")
@@ -59,11 +60,13 @@ impl  Iface {
             .arg(&format!("name=\"{}\"", self.name))
             .arg("source=static")
             .arg(&format!("addr={}", ip))
-            .arg(&format!("mask={}", netbit))
-            .output();
+            .arg(&format!("mask={}", netbit));
+
+        let res = command.output();
+
         match res {
-            Ok(_) => {
-                debug!("netsh ok");
+            Ok(r) => {
+                debug!("netsh ok: {:?}", r);
             }
             Err(e) => {
                 error!("failed to run netsh: {}", e.to_string());