diff --git a/Sources/CoreLibrary/Code.cs b/Sources/CoreLibrary/Code.cs
index 4c00021..c23f278 100644
--- a/Sources/CoreLibrary/Code.cs
+++ b/Sources/CoreLibrary/Code.cs
@@ -31,7 +31,8 @@
             if(NbJetons <= 0)
                 throw new CodeTableauLesJetonsVideException();
            
-            lesJetons[NbJetons--] = null;
+            lesJetons[NbJetons-1] = null;
+            --NbJetons;
         }
 
         public Jeton RecupererJeton(int indice)