diff --git a/includes/Piece.hpp b/includes/Piece.hpp
index fe5a877..21a8c04 100644
--- a/includes/Piece.hpp
+++ b/includes/Piece.hpp
@@ -10,8 +10,8 @@ class Piece {
   std::string categorie;
 
 public:
-  Piece(std::string categorie); // constructor
-  virtual ~Piece();             // destructor
+  Piece(const std::string categorie); // constructor
+  virtual ~Piece();                   // destructor
 
   Piece(const Piece &);                  // copy constructor
   const Piece &operator=(const Piece &); // copy assignement
diff --git a/src/Piece.cpp b/src/Piece.cpp
index 72b3eb0..2b35759 100644
--- a/src/Piece.cpp
+++ b/src/Piece.cpp
@@ -1,6 +1,6 @@
 #include "../includes/Piece.hpp"
 
-Piece::Piece(std::string cat) { std::cout << "pièce\n"; }
+Piece::Piece(const std::string cat) { std::cout << "pièce - " << cat << "\n"; }
 
 Piece::~Piece() {}