diff --git a/cake/libs/model/datasources/dbo/dbo_mssql.php b/cake/libs/model/datasources/dbo/dbo_mssql.php
index 1424332f4d7..ebbe33fcf56 100644
--- a/cake/libs/model/datasources/dbo/dbo_mssql.php
+++ b/cake/libs/model/datasources/dbo/dbo_mssql.php
@@ -426,7 +426,7 @@ function update(&$model, $fields = array(), $values = null, $conditions = null)
  * @return string Error message with error number
  */
 	function lastError() {
-		$error = mssql_get_last_message($this->connection);
+		$error = mssql_get_last_message();
 
 		if ($error) {
 			if (!preg_match('/contexto de la base de datos a|contesto di database|changed database|datenbankkontext/i', $error)) {