diff --git a/src/kemal/helpers/macros.cr b/src/kemal/helpers/macros.cr
index aee49d3..2f9b978 100644
--- a/src/kemal/helpers/macros.cr
+++ b/src/kemal/helpers/macros.cr
@@ -73,5 +73,6 @@ end
 macro halt(env, status_code = 200, response = "")
   {{env}}.response.status_code = {{status_code}}
   {{env}}.response.print {{response}}
+  {{env}}.response.close
   next
 end