diff --git a/modules/image/image.install b/modules/image/image.install
index 121e8c7..5abae50 100644
--- a/modules/image/image.install
+++ b/modules/image/image.install
@@ -121,13 +121,13 @@ function image_field_schema($field) {
       'alt' => array(
         'description' => "Alternative image text, for the image's 'alt' attribute.",
         'type' => 'varchar',
-        'length' => 128,
+        'length' => variable_get('image_alt_length', 80),
         'not null' => FALSE,
       ),
       'title' => array(
         'description' => "Image title text, for the image's 'title' attribute.",
         'type' => 'varchar',
-        'length' => 128,
+        'length' => variable_get('image_title_length', 500),
         'not null' => FALSE,
       ),
     ),