diff --git a/cxxwrap1/callcxx.jl b/cxxwrap1/callcxx.jl
index 55822e3..76da8e3 100644
--- a/cxxwrap1/callcxx.jl
+++ b/cxxwrap1/callcxx.jl
@@ -9,4 +9,4 @@ module CppHello
 end
 
 # Call greet and show the result
-@show CppHello.greet()
+@show CppHello.greet("Hello World")
diff --git a/cxxwrap1/hello.cpp b/cxxwrap1/hello.cpp
index 232a0dc..ad9214f 100644
--- a/cxxwrap1/hello.cpp
+++ b/cxxwrap1/hello.cpp
@@ -2,9 +2,9 @@
 
 #include "jlcxx/jlcxx.hpp"
 
-std::string greet()
+std::string greet(std::string msg)
 {
-   return "hello, world";
+   return msg;
 }
 
 JLCXX_MODULE define_julia_module(jlcxx::Module& mod)