diff --git a/src/main.cpp b/src/main.cpp
index f30b111..a403032 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,6 +3,6 @@
 #include "test.hpp"
 
 int main() {
-    helloWorld();
+    helloWorld(4);
     return 0;
 }
diff --git a/src/test.cpp b/src/test.cpp
index af89005..2a00baf 100644
--- a/src/test.cpp
+++ b/src/test.cpp
@@ -4,3 +4,8 @@ int helloWorld() {
     std::cout << "Hello world!" << std::endl;
     return 0;
 }
+
+int helloWorld(int c) {
+    std::cout << "Hello " << c << " worlds!" << std::endl;
+    return 0;
+}
diff --git a/src/test.hpp b/src/test.hpp
index 783f465..6e7c281 100644
--- a/src/test.hpp
+++ b/src/test.hpp
@@ -1 +1,2 @@
 int helloWorld();
+int helloWorld(int c);
--
libgit2 0.21.2