diff --git rules.module rules.module
index 920faab..a9cb2e9 100644
--- rules.module
+++ rules.module
@@ -480,7 +480,7 @@ function rules_rules_plugin_info() {
           'class' => 'RulesRuleUI',
         ),
       ),
-      'import keys' => array('IF', 'DO'),
+      'import keys' => array('IF', 'DO', 'RULE'),
     ),
     'loop' => array(
       'class' => 'RulesLoop',