diff --git a/src/arenas/Battleship/functions.php b/src/arenas/Battleship/functions.php
index 5c9caf5..91afa98 100644
--- a/src/arenas/Battleship/functions.php
+++ b/src/arenas/Battleship/functions.php
@@ -4,7 +4,7 @@ function is_it_possible_to_place_ships_on_grid($gridWidth,$gridHeight,$nbShipsSi
   //not a perfect solution
   $shipsArea=$nbShipsSize1 + (2 * $nbShipsSize2) + (3 * $nbShipsSize3) + (4 * $nbShipsSize4) + (5 * $nbShipsSize5) + (6 * $nbShipsSize6);
   if( $shipsArea < intval($gridHeight * $gridWidth / 2)){
-    echo $shipArea." ". intval($gridHeight * $gridWidth / 2);
+    echo $shipsArea." ". intval($gridHeight * $gridWidth / 2);
     return false;
   }
   //longest ship