diff --git a/src/main.rs b/src/main.rs
index 9a56bfa..27037f9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,6 +10,8 @@ use clap::{App, Arg};
 use std::sync::{Arc, RwLock};
 use std::collections::BTreeMap;
 use tide::Request;
+use std::process::exit;
+use std::time::Duration;
 
 const NAME: &str = env!("CARGO_PKG_NAME");
 const VERSION: &str = env!("CARGO_PKG_VERSION");
@@ -56,8 +58,8 @@ async fn main() -> tide::Result<()> {
     };
 
     let domains: Vec<&str> = domains_val.collect::<Vec<_>>();
-    information!("Domains: {:?}", domains);
 
+    let (s, r) = async_std::channel::bounded(1);
     async_std::task::spawn(async move {
         information!("Listen at 0.0.0.0:{}", port);
         let mut app = tide::new();
@@ -81,13 +83,18 @@ async fn main() -> tide::Result<()> {
                 }
             }
         });
+        s.send(1).await.ok();
         if let Err(e) = app.listen(&format!("0.0.0.0:{}", port)).await {
             failure!("Failed to listen 0.0.0.0:{}, error: {}", port, e);
+            exit(1);
         }
     });
 
+    r.recv().await.ok();
+    async_std::task::sleep(Duration::from_secs(1)).await;
     let primary_name = domains[0];
     let alt_names: Vec<&str> = domains.into_iter().skip(1).collect();
+    information!("Domains, main: {}, alt: {:?}", primary_name, alt_names);
     request_domains(email, primary_name, &alt_names).expect("Request domain failed");
 
     Ok(())
@@ -96,7 +103,7 @@ async fn main() -> tide::Result<()> {
 
 fn request_domains(contract_email: &str, primary_name: &str, alt_names: &[&str]) -> XResult<()> {
     let url = DirectoryUrl::LetsEncrypt;
-    std::fs::create_dir("__temp_dir").expect("Create temp dir failed!");
+    std::fs::create_dir("__temp_dir").ok();
     let persist = FilePersist::new("__temp_dir");
     let dir = Directory::from_url(persist, url)?;
     let acc = dir.account(contract_email)?;