diff --git a/service.inc b/service.inc
index a0f3dcd..7a12be0 100644
--- a/service.inc
+++ b/service.inc
@@ -135,11 +135,11 @@ class SearchApiDbService extends SearchApiAbstractService {
    * {@inheritdoc}
    */
   public function supportsFeature($feature) {
-    $supported = drupal_map_assoc(array(
-      'search_api_autocomplete',
-      'search_api_facets',
-      'search_api_facets_operator_or',
-    ));
+    $supported = array(
+      'search_api_autocomplete' => TRUE,
+      'search_api_facets' => TRUE,
+      'search_api_facets_operator_or' => TRUE,
+    );
     return isset($supported[$feature]);
   }