diff --git a/src/main/java/com/wimbli/WorldBorder/DynMapFeatures.java b/src/main/java/com/wimbli/WorldBorder/DynMapFeatures.java
index 6fce4cb..0acc14a 100644
--- a/src/main/java/com/wimbli/WorldBorder/DynMapFeatures.java
+++ b/src/main/java/com/wimbli/WorldBorder/DynMapFeatures.java
@@ -178,17 +178,20 @@ public class DynMapFeatures
 		if (squareBorders.containsKey(worldName))
 			removeBorder(worldName);
 
+		World world = Bukkit.getWorld(worldName);
+		int y = (world != null) ? world.getMaxHeight() : 255;
+
 		CircleMarker marker = roundBorders.get(worldName);
 		if (marker == null)
 		{
-			marker = markSet.createCircleMarker("worldborder_"+worldName, Config.DynmapMessage(), false, worldName, border.getX(), 64.0, border.getZ(), border.getRadiusX(), border.getRadiusZ(), true);
+			marker = markSet.createCircleMarker("worldborder_"+worldName, Config.DynmapMessage(), false, worldName, border.getX(), y, border.getZ(), border.getRadiusX(), border.getRadiusZ(), true);
 			marker.setLineStyle(lineWeight, lineOpacity, lineColor);
 			marker.setFillStyle(0.0, 0x000000);
 			roundBorders.put(worldName, marker);
 		}
 		else
 		{
-			marker.setCenter(worldName, border.getX(), 64.0, border.getZ());
+			marker.setCenter(worldName, border.getX(), y, border.getZ());
 			marker.setRadius(border.getRadiusX(), border.getRadiusZ());
 		}
 	}