[ci skip] Fix #5526
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);
 	}