diff --git a/AdminImagesPlugin.php b/AdminImagesPlugin.php
index e7de819..6202dd0 100644
--- a/AdminImagesPlugin.php
+++ b/AdminImagesPlugin.php
@@ -12,7 +12,7 @@
  * 
  * @package AdminImages
  */
-class AdminImagesPlugin extends Omeka_plugin_AbstractPlugin
+class AdminImagesPlugin extends Omeka_Plugin_AbstractPlugin
 {
     /**
      * @var array Hooks for the plugin.