diff --git a/lib/oauthlib.php b/lib/oauthlib.php
index 8fe9edd3a99..00950048581 100644
--- a/lib/oauthlib.php
+++ b/lib/oauthlib.php
@@ -462,7 +462,7 @@ abstract class oauth2_client extends curl {
     public function is_logged_in() {
         // Has the token expired?
         if (isset($this->accesstoken->expires) && time() >= $this->accesstoken->expires) {
-            $this->log_out();
+            $this->store_token(null);
             return false;
         }