diff --git a/README.md b/README.md
index 053599cf..0a993c45 100644
--- a/README.md
+++ b/README.md
@@ -132,6 +132,8 @@ app.add_set(option_name,
 
 app.add_set_ignore_case(... // String only
 
+app.add_help_flag(name, optional_discription);
+
 App* subcom = app.add_subcommand(name, discription);
 ```
 
diff --git a/include/CLI/App.hpp b/include/CLI/App.hpp
index e0bd850e..d6538c8f 100644
--- a/include/CLI/App.hpp
+++ b/include/CLI/App.hpp
@@ -331,6 +331,7 @@ class App {
         return opt;
     }
 
+    /// Add a help flag, currently throws an error if already set
     Option *add_help_flag(std::string name, std::string description = "") {
         if(help_ptr_)
             throw IncorrectConstruction("Help flag already initialized");