diff --git a/cake/libs/model/datasources/dbo/dbo_postgres.php b/cake/libs/model/datasources/dbo/dbo_postgres.php
index db264f7104c..6ed32b0f882 100644
--- a/cake/libs/model/datasources/dbo/dbo_postgres.php
+++ b/cake/libs/model/datasources/dbo/dbo_postgres.php
@@ -318,9 +318,9 @@ public function truncate($table, $reset = 0) {
 			if (isset($this->_sequenceMap[$table]) && $reset !== 1) {
 				foreach ($this->_sequenceMap[$table] as $field => $sequence) {
 					if ($reset === 0) {
-						$this->execute("ALTER SEQUENCE \"{$sequence}\" RESTART WITH 1");
+						$this->_execute("ALTER SEQUENCE \"{$sequence}\" RESTART WITH 1");
 					} elseif ($reset === -1) {
-						$this->execute("DROP SEQUENCE IF EXISTS \"{$sequence}\"");
+						$this->_execute("DROP SEQUENCE IF EXISTS \"{$sequence}\"");
 					}
 				}
 			}