diff --git a/sites/all/modules/unl_multisite/unl_multisite.module b/sites/all/modules/unl_multisite/unl_multisite.module
index 909be58462f7fc64d9da1746bc7b0733be22205e..c0e0d9711cbf6c171d68d25decb4432e451c54fa 100644
--- a/sites/all/modules/unl_multisite/unl_multisite.module
+++ b/sites/all/modules/unl_multisite/unl_multisite.module
@@ -46,6 +46,17 @@ function unl_multisite_block_view_my_sites() {
   return $block;
 }
 
+/**
+ * Implements hook_help().
+ */
+function unl_multisite_help($path, $arg) {
+  switch ($path) {
+    case 'admin/sites/unl/aliases':
+    case 'admin/sites/unl/%/aliases':
+      return '<p>Be careful when deleting aliases. While long, ugly paths may not appear to be needed they may still be in use -  for instance in a ProxyPass setup on another server.</p>';
+  }
+}
+
 /**
  * Implementation of hook_menu().
  */