diff --git a/config/routes.rb b/config/routes.rb
index b6882d99..7bffe21f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-FILENAME_REGEXP = %r{[\w./]+}.freeze unless Kernel.const_defined?(:FILENAME_REGEXP)
+FILENAME_REGEXP = %r{[\w\-./]+}.freeze unless Kernel.const_defined?(:FILENAME_REGEXP)
 
 Rails.application.routes.draw do
   resources :community_solutions, only: %i[index edit update]