diff --git a/geetest4_fullpage/mian.py b/geetest4_fullpage/mian.py
index 13a1f32..9426e73 100644
--- a/geetest4_fullpage/mian.py
+++ b/geetest4_fullpage/mian.py
@@ -22,7 +22,6 @@ def main(captchaId, challenge):
     detail_time = res['data']["pow_detail"]["datetime"]
     with open('jiyan.js', 'r', encoding='utf-8') as f:
         js = execjs.compile(f.read())
-    key = js.call('get_key')
     w = js.call('get_w', captchaId, lot_number, detail_time)
     url = "https://gcaptcha4.geetest.com/verify"
     params = {
@@ -45,4 +44,4 @@ def main(captchaId, challenge):
 if __name__ == '__main__':
     captchaId = get_captchaId()
     challenge = str(uuid.uuid4())
-    main(captchaId, challenge)
\ No newline at end of file
+    main(captchaId, challenge)