diff --git a/src/Butin/PieceButin.cpp b/src/Butin/PieceButin.cpp
index bccd638..98f2f39 100644
--- a/src/Butin/PieceButin.cpp
+++ b/src/Butin/PieceButin.cpp
@@ -18,6 +18,7 @@ std::string PieceButin::to_string(const enum Categorie cat) const {
     return "Noire";
 
   default:
+    std::cerr << "Catégorie inconnue (PieceButin).\n";
     exit(EXIT_FAILURE);
   }
 }
diff --git a/src/Dames/Dames.cpp b/src/Dames/Dames.cpp
index d2f00f7..0d1b7f8 100644
--- a/src/Dames/Dames.cpp
+++ b/src/Dames/Dames.cpp
@@ -55,6 +55,10 @@ bool Dames::prisePossible(Joueur &joueur) const {
   int y = 1;
   for (int i = 0; i < pieces.size(); i++) {
     PieceDames *p = dynamic_cast<PieceDames *>(pieces[i]);
+    if (!p) {
+      std::cerr << "Cette pièce est.. étrange.\n";
+      exit(EXIT_FAILURE);
+    }
     if (p->getDame()) {
       // if(plateau[x][y] == nullptr)
     }
diff --git a/src/Dames/PieceDames.cpp b/src/Dames/PieceDames.cpp
index 24ffd86..1b84825 100644
--- a/src/Dames/PieceDames.cpp
+++ b/src/Dames/PieceDames.cpp
@@ -23,6 +23,7 @@ std::string PieceDames::to_string(const enum Categorie cat) const {
     return "Noire";
 
   default:
+    std::cerr << "Catégorie inconnue (PieceDames).\n";
     exit(EXIT_FAILURE);
   }
 }
diff --git a/src/Safari/PieceSafari.cpp b/src/Safari/PieceSafari.cpp
index 7a9af78..07240fc 100644
--- a/src/Safari/PieceSafari.cpp
+++ b/src/Safari/PieceSafari.cpp
@@ -18,6 +18,7 @@ std::string PieceSafari::to_string(const enum Categorie cat) const {
     return "Lion";
 
   default:
+    std::cerr << "Catégorie inconnue (PieceSafari).\n";
     exit(EXIT_FAILURE);
   }
 }