Fixed inconsistent return types
diff --git a/system/libraries/Session/drivers/Session_files_driver.php b/system/libraries/Session/drivers/Session_files_driver.php
index ad8315d..d3ef34a 100644
--- a/system/libraries/Session/drivers/Session_files_driver.php
+++ b/system/libraries/Session/drivers/Session_files_driver.php
@@ -269,7 +269,7 @@
 	 *
 	 * Releases locks and closes file descriptor.
 	 *
-	 * @return	void
+	 * @return	bool
 	 */
 	public function close()
 	{