diff --git a/bot.js b/bot.js
index 0c6b986..aa17301 100644
--- a/bot.js
+++ b/bot.js
@@ -132,7 +132,7 @@ const getEnvCookies = () => {
 
 class SmzdmBot {
   constructor(cookie) {
-    this.cookie = cookie;
+    this.cookie = cookie.trim();
 
     const match = this.cookie.match(/sess=(.*?);/);
     this.token = match ? match[1] : '';
diff --git a/smzdm_checkin.js b/smzdm_checkin.js
index 84331f6..0c57d90 100644
--- a/smzdm_checkin.js
+++ b/smzdm_checkin.js
@@ -17,7 +17,7 @@ class SmzdmCheckinBot extends SmzdmBot {
   constructor(cookie, sk) {
     super(cookie);
 
-    this.sk = sk;
+    this.sk = sk.trim();
   }
 
   async run() {