diff --git a/modules/field/field.api.php b/modules/field/field.api.php
index 9c52d24..28dabc1 100644
--- a/modules/field/field.api.php
+++ b/modules/field/field.api.php
@@ -256,7 +256,7 @@ function hook_field_schema($field) {
   }
   $columns += array(
     'format' => array(
-      'type' => 'int',
+      'type' => 'text',
       'unsigned' => TRUE,
       'not null' => FALSE,
     ),