diff --git a/core/modules/file/file.install b/core/modules/file/file.install
index 1f31e43a6d921fa8199a9c115f5f37db6fbbf0d1..16611c273f7646164daf2c65abfb08644ce7bc8b 100644
--- a/core/modules/file/file.install
+++ b/core/modules/file/file.install
@@ -65,6 +65,7 @@ function file_schema() {
       'filesize' => array(
         'description' => 'The size of the file in bytes.',
         'type' => 'int',
+        'size' => 'big',
         'unsigned' => TRUE,
         'not null' => TRUE,
         'default' => 0,