diff --git a/modules/openlayers_library/src/Plugin/Control/OL3LayerSwitcher/OL3LayerSwitcher.php b/modules/openlayers_library/src/Plugin/Control/OL3LayerSwitcher/OL3LayerSwitcher.php
index 81387982..6ea77dcf 100644
--- a/modules/openlayers_library/src/Plugin/Control/OL3LayerSwitcher/OL3LayerSwitcher.php
+++ b/modules/openlayers_library/src/Plugin/Control/OL3LayerSwitcher/OL3LayerSwitcher.php
@@ -30,16 +30,4 @@ class OL3LayerSwitcher extends Control {
     );
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function preBuild(array &$build, BaseInterface $context = NULL) {
-    array_map(function($layer) {
-      /** @var LayerInterface $layer */
-      if (!in_array($layer->getFactoryService(), array('openlayers.Layer:Vector', 'openlayers.Layer:Heatmap'))) {
-        $layer->setOption('type', 'base');
-      }
-    }, $context->getObjects('layer'));
-  }
-
 }