diff --git a/src/kemal/config.cr b/src/kemal/config.cr
index 3454154..683f721 100644
--- a/src/kemal/config.cr
+++ b/src/kemal/config.cr
@@ -66,7 +66,6 @@ module Kemal
     end
 
     def add_filter_handler(handler : HTTP::Handler)
-      setup
       HANDLERS.insert HANDLERS.size - 1, handler
     end