diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index f3e824d..f9bf118 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -218,7 +218,7 @@
 
 		// Some DBs have functions that return the version, and don't run special
 		// SQL queries per se. In these instances, just return the result.
-		$driver_version_exceptions = array('oci8', 'sqlite', 'cubrid');
+		$driver_version_exceptions = array('oci8', 'sqlite', 'cubrid', 'pdo');
 
 		if (in_array($this->dbdriver, $driver_version_exceptions))
 		{