diff --git a/TP1/C-Cpp/src/mysok.cpp b/TP1/C-Cpp/src/mysok.cpp
index 8b5c9df..65910f1 100644
--- a/TP1/C-Cpp/src/mysok.cpp
+++ b/TP1/C-Cpp/src/mysok.cpp
@@ -100,13 +100,13 @@ void sok_board_t::load(char *_file) {
 }
 
 bool is_in_history(Node current, std::vector<Node> history) {
-  for (int i = 0; i < history.size(); ++i) {
+  for (ulong i = 0; i < history.size(); ++i) {
     Node noeud = history[i];
 
     int c = 0;
     for (int l = 0; l < NBL; ++l) {
       for (int m = 0; m < NBC; ++m) {
-        if (current.state.board[l][m] != current.state.board[l][m])
+        if (current.state.board[l][m] != noeud.state.board[l][m])
           c++;
       }
     }