diff --git a/lib/plugins/extension/helper/list.php b/lib/plugins/extension/helper/list.php
index 47edca8c12d4eb50175694b4d1af4d6a7b571624..9b1988d84388e7c2214917cc661f0dc0a9f5bee3 100644
--- a/lib/plugins/extension/helper/list.php
+++ b/lib/plugins/extension/helper/list.php
@@ -387,7 +387,8 @@ class helper_plugin_extension_list extends DokuWiki_Plugin {
                 $return .= '<dd>';
                 $return .= hsc($extension->getInstalledVersion());
                 $return .= '</dd>';
-            } else {
+            }
+            if (!$extension->isBundled()) {
                 $return .= '<dt>'.$this->getLang('install_date').'</dt>';
                 $return .= '<dd>';
                 $return .= ($extension->getUpdateDate() ? hsc($extension->getUpdateDate()) : $this->getLang('unknown'));
@@ -401,13 +402,6 @@ class helper_plugin_extension_list extends DokuWiki_Plugin {
             $return .= '</dd>';
         }
 
-        if($extension->getInstallDate()) {
-            $return .= '<dt>'.$this->getLang('installed').'</dt>';
-            $return .= '<dd>';
-            $return .= hsc($extension->getInstallDate());
-            $return .= '</dd>';
-        }
-
         $return .= '<dt>'.$this->getLang('provides').'</dt>';
         $return .= '<dd><bdi>';
         $return .= ($extension->getTypes() ? hsc(implode(', ', $extension->getTypes())) : $default);