diff --git a/system/libraries/Session/drivers/Session_memcached_driver.php b/system/libraries/Session/drivers/Session_memcached_driver.php
index 7d8e390..9e81168 100644
--- a/system/libraries/Session/drivers/Session_memcached_driver.php
+++ b/system/libraries/Session/drivers/Session_memcached_driver.php
@@ -305,7 +305,7 @@
 	 */
 	public function validateId($id)
 	{
-		$this->_memcached-get($this->_key_prefix.$id);
+		$this->_memcached->get($this->_key_prefix.$id);
 		return ($this->_memcached->getResultCode() === Memcached::RES_SUCCESS);
 	}
 
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 4780505..c983f1b 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -5,7 +5,10 @@
 Version 3.1.10
 ==============
 
+Bug fixes for 3.1.10
+--------------------
 
+-  Fixed a bug (#5526) - :doc:`Session Library <libraries/sessions>` had a syntax error in its 'memcached' driver.
 
 Version 3.1.9
 =============