diff --git a/lib/rackstash/filters.rb b/lib/rackstash/filters.rb
index 0fc87c3..f41cca9 100644
--- a/lib/rackstash/filters.rb
+++ b/lib/rackstash/filters.rb
@@ -1,5 +1,4 @@
 # frozen_string_literal: true
-
 # Copyright 2017 Holger Just
 #
 # This software may be modified and distributed under the terms