diff --git a/module/config/config.php b/module/config/config.php
index cf03d4d..c9b58f3 100644
--- a/module/config/config.php
+++ b/module/config/config.php
@@ -88,7 +88,12 @@ $GLOBALS['LEAFLET_MAPPERS'][] = 'Netzmacht\Contao\Leaflet\Mapper\MapMapper';
 
 // Layer mappers.
 $GLOBALS['LEAFLET_MAPPERS'][] = 'Netzmacht\Contao\Leaflet\Mapper\Layer\TileLayerMapper';
-$GLOBALS['LEAFLET_MAPPERS'][] = 'Netzmacht\Contao\Leaflet\Mapper\Layer\ProviderLayerMapper';
+$GLOBALS['LEAFLET_MAPPERS'][] = function () {
+    return new \Netzmacht\Contao\Leaflet\Mapper\Layer\ProviderLayerMapper(
+        $GLOBALS['LEAFLET_TILE_PROVIDERS']
+    );
+};
+
 $GLOBALS['LEAFLET_MAPPERS'][] = 'Netzmacht\Contao\Leaflet\Mapper\Layer\MarkersLayerMapper';
 $GLOBALS['LEAFLET_MAPPERS'][] = 'Netzmacht\Contao\Leaflet\Mapper\Layer\GroupLayerMapper';
 $GLOBALS['LEAFLET_MAPPERS'][] = 'Netzmacht\Contao\Leaflet\Mapper\Layer\VectorsLayerMapper';
diff --git a/src/Netzmacht/Contao/Leaflet/Mapper/Layer/ProviderLayerMapper.php b/src/Netzmacht/Contao/Leaflet/Mapper/Layer/ProviderLayerMapper.php
index ee45ed2..9652ff4 100644
--- a/src/Netzmacht/Contao/Leaflet/Mapper/Layer/ProviderLayerMapper.php
+++ b/src/Netzmacht/Contao/Leaflet/Mapper/Layer/ProviderLayerMapper.php
@@ -40,11 +40,11 @@ class ProviderLayerMapper extends AbstractLayerMapper
     /**
      * Construct.
      *
-     * @SuppressWarnings(PHPMD.Superglobals)
+     * @param array $providers Registered providers.
      */
-    public function __construct()
+    public function __construct(array $providers)
     {
-        $this->providers = &$GLOBALS['LEAFLET_TILE_PROVIDERS'];
+        $this->providers = $providers;
 
         parent::__construct();
     }