diff --git a/src/kemal/helpers/exceptions.cr b/src/kemal/helpers/exceptions.cr
index 53520b3..666cdd9 100644
--- a/src/kemal/helpers/exceptions.cr
+++ b/src/kemal/helpers/exceptions.cr
@@ -13,7 +13,10 @@ module Kemal::Exceptions
   end
 
   class CustomException < Exception
-    def initialize(context : HTTP::Server::Context)
+    def initialize(context : HTTP::Server::Context, message : String = "")
+      @context = context
+      @message = message
+
       super "Rendered error with #{context.response.status_code}"
     end
   end