diff --git a/config/routes.rb b/config/routes.rb
index 8a6fe6e6c4a..d7d578c3e27 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -200,9 +200,9 @@ Discourse::Application.routes.draw do
 
       # They have periods in their URLs often:
       get 'site_texts'          => 'site_texts#index'
-      get 'site_texts/(:id)'    => 'site_texts#show',   constraints: { id: /[\w.\-]+/i }
-      put 'site_texts/(:id)'    => 'site_texts#update', constraints: { id: /[\w.\-]+/i }
-      delete 'site_texts/(:id)' => 'site_texts#revert', constraints: { id: /[\w.\-]+/i }
+      get 'site_texts/(:id)'    => 'site_texts#show',   constraints: { id: /[\w.\-\+]+/i }
+      put 'site_texts/(:id)'    => 'site_texts#update', constraints: { id: /[\w.\-\+]+/i }
+      delete 'site_texts/(:id)' => 'site_texts#revert', constraints: { id: /[\w.\-\+]+/i }
 
       get 'email_templates'          => 'email_templates#index'
       get 'email_templates/(:id)'    => 'email_templates#show',   constraints: { id: /[0-9a-z_.]+/ }