diff --git a/src/Composer/Plugin/PluginManager.php b/src/Composer/Plugin/PluginManager.php
index c6073561b..fc89f9e52 100644
--- a/src/Composer/Plugin/PluginManager.php
+++ b/src/Composer/Plugin/PluginManager.php
@@ -656,7 +656,7 @@ class PluginManager
         }
 
         if (false === $allowPluginsConfig) {
-            return array('{^$}D' => false);
+            return array('{}' => false);
         }
 
         $rules = array();