diff --git a/main.cpp b/main.cpp
index 5014806..e429054 100644
--- a/main.cpp
+++ b/main.cpp
@@ -248,8 +248,7 @@ int main()
         if(!api_mode)
             readConf();
         std::string surge_base_content;
-        std::string url = UrlDecode(getUrlArg(argument, "url")), include = UrlDecode(getUrlArg(argument, "regex")), group = UrlDecode(getUrlArg(argument, "group"));
-        int surge_ver = stoi(getUrlArg(argument, "ver"));
+        std::string url = UrlDecode(getUrlArg(argument, "url")), include = UrlDecode(getUrlArg(argument, "regex")), group = UrlDecode(getUrlArg(argument, "group")), version = getUrlArg(argument, "ver");        int surge_ver = version.size() ? stoi(version) : 3;
         if(!url.size()) url = default_url;
         string_array urls = split(url, "|");
         std::vector<nodeInfo> nodes;
diff --git a/misc.cpp b/misc.cpp
index c8a6fd1..bdd2a04 100644
--- a/misc.cpp
+++ b/misc.cpp
@@ -128,7 +128,8 @@ std::string UrlDecode(const std::string& str)
             strTemp += ' ';
         else if (str[i] == '%')
         {
-            assert(i + 2 < length);
+            if(i + 2 < length)
+                return strTemp;
             unsigned char high = FromHex((unsigned char)str[++i]);
             unsigned char low = FromHex((unsigned char)str[++i]);
             strTemp += high * 16 + low;
diff --git a/subexport.cpp b/subexport.cpp
index 5797d4c..460f38e 100644
--- a/subexport.cpp
+++ b/subexport.cpp
@@ -267,7 +267,7 @@ void rulesetToSurge(INIReader &base_rule, string_array &ruleset_array, int surge
             }
             else
             {
-                allRules.emplace_back("RULESET," + rule_path + "," + rule_group);
+                allRules.emplace_back("RULE-SET," + rule_path + "," + rule_group);
             }
         }
     }