diff --git multiple_email.module multiple_email.module
index d4f19d7..c7a55d3 100644
--- multiple_email.module
+++ multiple_email.module
@@ -156,14 +156,16 @@ function _multiple_email_access($op, $account, $email = NULL) {
  * @see multiple_email_user()
  */
 function multiple_email_menu_alter(&$items) {
-  $items['user/%user_category/edit/email-addresses'] = array(
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('multiple_email_manage', 1),
-    'access callback' => '_multiple_email_access',
-    'access arguments' => array('pages', 1),
-    'file' => 'multiple_email_manage.inc',
-    'file path' => drupal_get_path('module', 'multiple_email'),
-  ) + $items['user/%user_category/edit/email-addresses'];
+  if (!empty($items['user/%user_category/edit/email-addresses'])) {
+    $items['user/%user_category/edit/email-addresses'] = array(
+      'page callback' => 'drupal_get_form',
+      'page arguments' => array('multiple_email_manage', 1),
+      'access callback' => '_multiple_email_access',
+      'access arguments' => array('pages', 1),
+      'file' => 'multiple_email_manage.inc',
+      'file path' => drupal_get_path('module', 'multiple_email'),
+    ) + $items['user/%user_category/edit/email-addresses'];
+  }
 }
 
 /**