diff --git a/drogon_ctl/main.cc b/drogon_ctl/main.cc
index beca6bec..b4f3c4d3 100755
--- a/drogon_ctl/main.cc
+++ b/drogon_ctl/main.cc
@@ -1,7 +1,7 @@
 /**
  *
- *  main.cc
- *  An Tao
+ *  @file main.cc
+ *  @author An Tao
  *
  *  Copyright 2018, An Tao.  All rights reserved.
  *  https://github.com/an-tao/drogon
@@ -19,13 +19,13 @@
 
 int main(int argc, char *argv[])
 {
+    std::vector<std::string> args;
     if (argc < 2)
     {
-        std::vector<std::string> args = {"help"};
+        args = {"help"};
         exeCommand(args);
         return 0;
     }
-    std::vector<std::string> args;
     for (int i = 1; i < argc; ++i)
     {
         args.push_back(argv[i]);