diff --git a/wa-system/database/waModel.class.php b/wa-system/database/waModel.class.php
index ce9b5e2d5..d73f59c3a 100644
--- a/wa-system/database/waModel.class.php
+++ b/wa-system/database/waModel.class.php
@@ -504,6 +504,7 @@ protected function castValue($type, $value, $is_null = false)
             case 'bigint':
             case 'tinyint':
             case 'int':
+            case 'smallint':
             case 'integer':
                 if (wa_is_int($value)) {
                     return "'".$this->escape($value, 'int')."'";