diff --git a/src/mapcrafter_exporter/exporter.py b/src/mapcrafter_exporter/exporter.py
index 33202f9..6e60da6 100644
--- a/src/mapcrafter_exporter/exporter.py
+++ b/src/mapcrafter_exporter/exporter.py
@@ -38,10 +38,24 @@ def get_list_entry(lst, name):
             return dings
     return None
 
+def get_mapcrafter_world_name(name):
+    names = {
+        "Overworld": "verden",
+        "Nether": "underverden",
+        "The End": "enden",
+    }
+
+    if name in names:
+        return names[name]
+
+    raise ValueError(f"Unknown world name: {name}")
+
+
 def convert_data_to_mapcrafter_structure() -> list:
     result = []
 
     for world_name, world_marker_sets in WORLDS.items():
+        mapc_world_name = get_mapcrafter_world_name(world_name)
         for marker_set in world_marker_sets:
             # https://mapcrafter.readthedocs.io/en/latest/markers.html#manually-specifying-markers
             id = marker_set.name.lower().replace(" ", "-")
@@ -55,11 +69,11 @@ def convert_data_to_mapcrafter_structure() -> list:
                 }
                 result.append(result_entry)
 
-            result_entry["markers"][world_name] = []
+            result_entry["markers"][mapc_world_name] = []
             for marker in marker_set.markers:
                 if isinstance(marker, Point):
-                    result_entry["markers"][world_name].append(
-                        {"pos": [marker.x, marker.y, marker.z], "title": marker.name}
+                    result_entry["markers"][mapc_world_name].append(
+                        {"pos": [marker.x, marker.z, marker.y], "title": marker.name}
                     )
 
                 elif isinstance(marker, Track):
diff --git a/src/mapcrafter_exporter/markers-template.js b/src/mapcrafter_exporter/markers-template.js
index 24d6930..b38978d 100644
--- a/src/mapcrafter_exporter/markers-template.js
+++ b/src/mapcrafter_exporter/markers-template.js
@@ -1,4 +1,4 @@
-const MAPCRAFTER_MARKERS = [
+var MAPCRAFTER_MARKERS = [
   "@EXPORTED_MARKERS@",
 	{
 	   //
@@ -56,5 +56,12 @@ const MAPCRAFTER_MARKERS = [
 		       objekter.push(linjer);
 			return L.layerGroup(objekter);
 		},
+                "markers" : {
+                    "verden" : [
+                        {
+                            "color" : "yellow",
+                        },
+                    ],
+                },
 	},
 ];