diff --git a/src/Plugin/facets/facet_source/SearchApiViews.php b/src/Plugin/facets/facet_source/SearchApiViews.php
index 404c869..8372daf 100644
--- a/src/Plugin/facets/facet_source/SearchApiViews.php
+++ b/src/Plugin/facets/facet_source/SearchApiViews.php
@@ -16,7 +16,10 @@ use Drupal\views\Views;
 
 
 /**
- * Represents a facet source which represents the search api views.
+ * A facet source to support search api views.
+ *
+ * This facet source only supports views that have a search api index as a base,
+ * and only those displays that are a block or a page.
  *
  * @FacetsFacetSource(
  *   id = "search_api_views",
diff --git a/src/Plugin/facets/facet_source/SearchApiViewsDeriver.php b/src/Plugin/facets/facet_source/SearchApiViewsDeriver.php
index cdb1aab..0157fbc 100644
--- a/src/Plugin/facets/facet_source/SearchApiViewsDeriver.php
+++ b/src/Plugin/facets/facet_source/SearchApiViewsDeriver.php
@@ -13,6 +13,9 @@ use Drupal\facets\FacetSource\FacetSourceDeriverBase;
 /**
  * Derives a facet source plugin definition for every search api view.
  *
+ * This facet source only supports views that have a search api index as a base,
+ * and only those displays that are a block or a page.
+ *
  * @see \Drupal\facets\Plugin\facets\facet_source\SearchApiViews
  */
 class SearchApiViewsDeriver extends FacetSourceDeriverBase {
@@ -34,16 +37,27 @@ class SearchApiViewsDeriver extends FacetSourceDeriverBase {
         // Hardcoded usage of search api views, for now.
         if (strpos($view->get('base_table'), 'search_api_index') !== FALSE) {
           $displays = $view->get('display');
-          foreach ($displays as $name => $display_info) {
+          foreach ($displays as $display_id => $display_info) {
+
+            // We only support pages and blocks because those are the ones that
+            // we've tested. They are also the only ones that support for
+            // ::isRenderedInCurrentRequest() and ::getPath().
             if (in_array($display_info['display_plugin'], ['page', 'block'])) {
-              $machine_name = $view->id() . PluginBase::DERIVATIVE_SEPARATOR . $name;
+              $machine_name = $view->id() . PluginBase::DERIVATIVE_SEPARATOR . $display_id;
 
+              $label_arguments = [
+                '%view_name' => $view->label(),
+                '%display_title' => $display_info['display_title'],
+                '%display_type' => $display_info['display_plugin'],
+              ];
               $plugin_derivatives[$machine_name] = [
                 'id' => $base_plugin_id . PluginBase::DERIVATIVE_SEPARATOR . $machine_name,
-                'label' => $this->t('Search api view: %view_name, display: %display_title', ['%view_name' => $view->label(), '%display_title' => $display_info['display_title']]),
+                'label' => $this->t('Search api view: %view_name, display: %display_title (%display_type)',
+                  $label_arguments
+                ),
                 'description' => $this->t('Provides a facet source.'),
                 'view_id' => $view->id(),
-                'view_display' => $name,
+                'view_display' => $display_id,
               ] + $base_plugin_definition;
 
               $sources[] = $this->t(