diff --git a/lib/Cake/Model/Datasource/Database/Postgres.php b/lib/Cake/Model/Datasource/Database/Postgres.php
index dfe5272ec..152a9b405 100644
--- a/lib/Cake/Model/Datasource/Database/Postgres.php
+++ b/lib/Cake/Model/Datasource/Database/Postgres.php
@@ -727,19 +727,13 @@ class Postgres extends DboSource {
  * @return int An integer representing the length of the column
  */
 	public function length($real) {
-		$col = str_replace(array(')', 'unsigned'), '', $real);
-		$limit = null;
-
 		if (strpos($col, '(') !== false) {
 			list($col, $limit) = explode('(', $col);
 		}
 		if ($col === 'uuid') {
 			return 36;
 		}
-		if ($limit) {
-			return (int)$limit;
-		}
-		return null;
+		return parent::length($real);
 	}
 
 /**