diff --git a/piwik_reporting_api.install b/piwik_reporting_api.install
index 2e4befa..f0b5ca0 100644
--- a/piwik_reporting_api.install
+++ b/piwik_reporting_api.install
@@ -1,6 +1,7 @@
 <?php
 
 /**
+ * @file
  * Install, uninstall, update and requirements hooks for Piwik Reporting API.
  */
 
diff --git a/piwik_reporting_api_example/src/Plugin/Block/PiwikStatisticsBlock.php b/piwik_reporting_api_example/src/Plugin/Block/PiwikStatisticsBlock.php
index 30ec8a4..86ad248 100644
--- a/piwik_reporting_api_example/src/Plugin/Block/PiwikStatisticsBlock.php
+++ b/piwik_reporting_api_example/src/Plugin/Block/PiwikStatisticsBlock.php
@@ -35,7 +35,7 @@ class PiwikStatisticsBlock extends BlockBase implements ContainerFactoryPluginIn
    *   The ID for the plugin instance.
    * @param string $plugin_definition
    *   The plugin implementation definition.
-   * @param PiwikQueryFactoryInterface $piwik_query_factory
+   * @param \Drupal\piwik_reporting_api\PiwikQueryFactoryInterface $piwik_query_factory
    *   The Piwik query factory.
    */
   public function __construct(array $configuration, $plugin_id, $plugin_definition, PiwikQueryFactoryInterface $piwik_query_factory) {
@@ -63,8 +63,7 @@ class PiwikStatisticsBlock extends BlockBase implements ContainerFactoryPluginIn
       'count' => 10,
       'period' => 'day',
     ] + parent::defaultConfiguration();
-
- }
+  }
 
   /**
    * {@inheritdoc}
@@ -142,7 +141,7 @@ class PiwikStatisticsBlock extends BlockBase implements ContainerFactoryPluginIn
    */
   public function getCacheMaxAge() {
     // Cache the block for 1 hour.
-    return 60*60;
+    return 60 * 60;
   }
 
 }