diff --git a/README.md b/README.md
index 1c945f5..befaca8 100644
--- a/README.md
+++ b/README.md
@@ -43,12 +43,10 @@ TODO
 #include <iostream>
 #include <iterator>
 
-#include "argparse.h"
-
-using namespace argparse;
+#include "cli-parser.hpp"
 
 int main(int argc, const char* argv[]) {
-  ArgumentParser parser("example", "Argument parser example");
+  argparse::argument_parser_t parser("example", "Argument parser example");
   parser.add_argument()
       .names({"-v", "--verbose"})
       .description("verbose level")