diff --git a/include/CLI/Error.hpp b/include/CLI/Error.hpp
index fc3624f..589c486 100644
--- a/include/CLI/Error.hpp
+++ b/include/CLI/Error.hpp
@@ -172,7 +172,7 @@ class RequiresError : public ParseError {
         : RequiresError(curname + " requires " + subname, ExitCodes::RequiresError) {}
 };
 
-/// Thrown when a exludes option is present
+/// Thrown when an excludes option is present
 class ExcludesError : public ParseError {
     CLI11_ERROR_DEF(ParseError, ExcludesError)
     ExcludesError(std::string curname, std::string subname)
diff --git a/include/CLI/Option.hpp b/include/CLI/Option.hpp
index 4a577c1..990440f 100644
--- a/include/CLI/Option.hpp
+++ b/include/CLI/Option.hpp
@@ -298,7 +298,7 @@ class Option : public OptionBase<Option> {
 
         for(const Option_p &opt : parent->options_)
             if(opt.get() != this && *opt == *this)
-                throw OptionAlreadyAdded(opt->get_name());
+                throw OptionAlreadyAdded(opt->get_name() + " is already added");
 
         return this;
     }