diff -u b/includes/OpenIDConnectClientBase.class.php b/includes/OpenIDConnectClientBase.class.php
--- b/includes/OpenIDConnectClientBase.class.php
+++ b/includes/OpenIDConnectClientBase.class.php
@@ -137,7 +137,6 @@
     );
     $endpoints = $this->getEndpoints();
     $response = drupal_http_request($endpoints['token'], $request_options);
-
     if (!isset($response->error) && $response->code == 200) {
       $response_data = drupal_json_decode($response->data);
       $tokens = array(
@@ -151,6 +150,7 @@
     );
     $endpoints = $this->getEndpoints();
     $response = drupal_http_request($endpoints['token'], $request_options);
+
     if (!isset($response->error) && $response->code == 200) {
       $response_data = drupal_json_decode($response->data);
       $tokens = array(
@@ -209,10 +209,2 @@
   }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function endSession($id_token, $post_logout_redirect_url = '') {
-    // No need to do anything, but make the function have a body anyway
-    // so that it's callable by overriding methods.
-  }
 }
@@ -231,2 +223,10 @@
 
+  /**
+   * {@inheritdoc}
+   */
+  public function endSession($id_token, $post_logout_redirect_url = '') {
+    // No need to do anything, but make the function have a body anyway
+    // so that it's callable by overriding methods.
+  }
+
 }