diff --git rules/rules.install rules/rules.install
index 75a8285..8774e5b 100644
--- rules/rules.install
+++ rules/rules.install
@@ -89,7 +89,7 @@ function rules_schema() {
   $schema['rules_trigger'] = array(
     'fields' => array(
       'id' => array(
-        'type' => 'serial',
+        'type' => 'int',
         'not null' => TRUE,
         'description' => 'The primary identifier for any configuration.',
       ),