diff --git a/AircraftCarrier/AircraftCarrier/Direction.cs b/AircraftCarrier/AircraftCarrier/Direction.cs
index 48638ea..3253596 100644
--- a/AircraftCarrier/AircraftCarrier/Direction.cs
+++ b/AircraftCarrier/AircraftCarrier/Direction.cs
@@ -8,6 +8,7 @@ namespace AircraftCarrier
 {
     internal enum Direction
     {
+        None = 0,
         Up = 1,
         Down = 2,
         Left = 3,