diff --git a/quark_auto_save.py b/quark_auto_save.py
index 4d861a9..dae44a2 100644
--- a/quark_auto_save.py
+++ b/quark_auto_save.py
@@ -110,11 +110,16 @@ class Quark:
 
     def match_mparam_form_cookie(self, cookie):
         mparam = {}
-        kps_match = re.search(r"(?<!\w)kps=([a-zA-Z0-9%]+)[;&]?", cookie)
-        sign_match = re.search(r"(?<!\w)sign=([a-zA-Z0-9%]+)[;&]?", cookie)
-        vcode_match = re.search(r"(?<!\w)vcode=([a-zA-Z0-9%]+)[;&]?", cookie)
+        kps_match = re.search(r"(?<!\w)kps=([a-zA-Z0-9%+/=]+)[;&]?", cookie)
+        sign_match = re.search(r"(?<!\w)sign=([a-zA-Z0-9%+/=]+)[;&]?", cookie)
+        vcode_match = re.search(r"(?<!\w)vcode=([a-zA-Z0-9%+/=]+)[;&]?", cookie)
         if kps_match and sign_match and vcode_match:
             mparam = {
+                # from urllib.parse import unquote
+                # "kps": unquote(kps_match.group(1)),
+                # "sign": unquote(sign_match.group(1)),
+                # "vcode": unquote(vcode_match.group(1)),
+
                 "kps": kps_match.group(1).replace("%25", "%"),
                 "sign": sign_match.group(1).replace("%25", "%"),
                 "vcode": vcode_match.group(1).replace("%25", "%"),