diff -u b/facets.install b/facets.install
--- b/facets.install
+++ b/facets.install
@@ -152,7 +152,7 @@
 }
 
 /**
- * Update facet blocks configuration with a block id used for AJAX support
+ * Update facet blocks configuration with a block id used for AJAX support.
  */
 function facets_update_8006() {
   $query = \Drupal::entityQuery('block')
diff -u b/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php b/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php
--- b/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php
+++ b/modules/facets_summary/src/Plugin/Block/FacetsSummaryBlock.php
@@ -103,7 +103,7 @@
       'facets_summary_ajax' => [
         'facets_summary_id' => $build['#attributes']['data-drupal-facets-summary-id'],
         'view_id' => $view->id(),
-        'current_display_id' => $view->current_display
+        'current_display_id' => $view->current_display,
       ],
     ];
 
diff -u b/src/Controller/FacetBlockAjaxController.php b/src/Controller/FacetBlockAjaxController.php
--- b/src/Controller/FacetBlockAjaxController.php
+++ b/src/Controller/FacetBlockAjaxController.php
@@ -106,7 +106,7 @@
     $path = $request->request->get('facet_link');
     $facets_blocks = $request->request->get('facets_blocks');
 
-    // Make sure we are not updating blocks multiple times
+    // Make sure we are not updating blocks multiple times.
     $facets_blocks = array_unique($facets_blocks);
 
     if (empty($path) || empty($facets_blocks)) {
diff -u b/src/Plugin/Block/FacetBlock.php b/src/Plugin/Block/FacetBlock.php
--- b/src/Plugin/Block/FacetBlock.php
+++ b/src/Plugin/Block/FacetBlock.php
@@ -161,7 +161,7 @@
    */
   public function blockSubmit($form, FormStateInterface $form_state) {
     // Save block id to configuration, we do this for loading the orignal block
-    // with ajax
+    // with ajax.
     $block_id = $form['id']['#value'];
     $this->configuration['block_id'] = $block_id;
   }