diff --git a/minifyjs.install b/minifyjs.install
index 897f0fd..1d63009 100755
--- a/minifyjs.install
+++ b/minifyjs.install
@@ -21,7 +21,7 @@ function minifyjs_schema() {
       ),
       'uri'               => array(
         'description' => 'Original file uri.',
-        'length'      => 255,
+        'length'      => 191,
         'not null'    => TRUE,
         'type'        => 'varchar',
       ),