diff --git a/README.md b/README.md
index b2c428f..fbb25aa 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ or
 ```html
 <link href="https://unpkg.com/maplibre-gl@2.2.0/dist/maplibre-gl.css" rel="stylesheet" />
 <script src="https://unpkg.com/maplibre-gl@2.2.0/dist/maplibre-gl.js"></script>
-<script src="https://unpkg.com/maplibre-basemaps@0.0.3/dist/maplibre-basemaps.js"></script>
+<script src="https://unpkg.com/maplibre-basemaps@0.0.4/dist/maplibre-basemaps.js"></script>
 ```
 
 ## Usage
diff --git a/docs/index.html b/docs/index.html
index 1ca1109..f5910f2 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -6,8 +6,8 @@
     <title>Maplibre Basemaps</title>
     <script src="https://unpkg.com/maplibre-gl@2.2.0/dist/maplibre-gl.js"></script>
     <link href="https://unpkg.com/maplibre-gl@2.2.0/dist/maplibre-gl.css" rel="stylesheet" />
-    <script src="../dist/maplibre-basemaps.js"></script>
-    <!-- <script src="https://unpkg.com/maplibre-basemaps@0.0.3/dist/maplibre-basemaps.js"></script> -->
+    <!-- <script src="../dist/maplibre-basemaps.js"></script> -->
+    <script src="https://unpkg.com/maplibre-basemaps@0.0.4/dist/maplibre-basemaps.js"></script>
     <style>
         body {
             margin: 0;
diff --git a/package.json b/package.json
index 0628269..6b0e7eb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "maplibre-basemaps",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "description": "Maplibre plugin to add basemaps layer switcher",
   "keywords": [
     "maplibre",
diff --git a/src/maplibre-basemaps.ts b/src/maplibre-basemaps.ts
index 7df53ee..f0e73d2 100644
--- a/src/maplibre-basemaps.ts
+++ b/src/maplibre-basemaps.ts
@@ -1,22 +1,24 @@
 import { LayerSpecification, SourceSpecification, Map } from 'maplibre-gl';
 
+type Visibility = 'visible' | 'none';
+
 export interface BaseLayerConfig {
     name: string;
     tiles: Array<string>;
-    visibility: 'visible' | 'none';
+    visibility: Visibility;
     attribution?: string;
     minZoom?: number;
     maxZoom?: number;
   }
 
 export interface BasemapsConfig {
-    basemaps: BaseLayerConfig;
+    basemaps: { [key: string]: BaseLayerConfig };
     width?: string;
     height?: string;
   }
 
 export class BasemapControl {
-    basemaps: BaseLayerConfig;
+    basemaps: { [key: string]: BaseLayerConfig };
     config: BasemapsConfig;
     _container: HTMLElement;
     constructor(config: BasemapsConfig) {
@@ -146,8 +148,8 @@ export class BasemapControl {
                 type: 'raster',
                 tiles: value.tiles,
                 tileSize: 256,
-                minzoom: value.minzoom ?? 0,
-                maxzoom: value.maxzoom ?? 18,
+                minzoom: value.minZoom ?? 0,
+                maxzoom: value.maxZoom ?? 18,
                 attribution: value.attribution ?? '',
             }