diff --git a/source/Trek-12/Tests/RulesTests.cs b/source/Trek-12/Tests/RulesTests.cs
index e9aca3f..b981e5a 100644
--- a/source/Trek-12/Tests/RulesTests.cs
+++ b/source/Trek-12/Tests/RulesTests.cs
@@ -207,7 +207,7 @@ public class RulesTests
     public void IsZoneValidAndAddToZones_AddsToExistingZone_WhenAdjacentCellWithSameValueExists()
     {
         Rules rules = new Rules();
-        Map map = new Map("background");
+        Map map = new Map("Dunai", "background");
         Cell cell = new Cell(0, 0);
         cell.Value = 1;
         Cell adjacentCell = new Cell(0, 1);
@@ -226,7 +226,7 @@ public class RulesTests
     public void IsZoneValidAndAddToZones_CreatesNewZone_WhenAdjacentCellWithSameValueExistsButNoExistingZone()
     {
         Rules rules = new Rules();
-        Map map = new Map("background");
+        Map map = new Map("Dunai", "background");
         Cell cell = new Cell(0, 0);
         cell.Value = 1;
         Cell adjacentCell = new Cell(0, 1);