diff --git a/config/application.rb b/config/application.rb
index 1073cd75..17d35456 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -27,11 +27,6 @@ module CodeOcean
     # config.i18n.default_locale = :de
     config.i18n.available_locales = [:de, :en]
 
-    # Add inflection for Zeitwerk
-    ActiveSupport::Inflector.inflections(:en) do |inflect|
-      inflect.acronym 'IO'
-    end
-
     extra_paths = %W[
       #{config.root}/lib
     ]
diff --git a/config/initializers/inflections.rb b/config/initializers/inflections.rb
index ac033bf9..638bf0c7 100644
--- a/config/initializers/inflections.rb
+++ b/config/initializers/inflections.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new inflection rules using the following format. Inflections
@@ -10,7 +12,7 @@
 #   inflect.uncountable %w( fish sheep )
 # end
 
-# These inflection rules are supported but not enabled by default:
-# ActiveSupport::Inflector.inflections(:en) do |inflect|
-#   inflect.acronym 'RESTful'
-# end
+ActiveSupport::Inflector.inflections(:en) do |inflect|
+  inflect.acronym 'IO'
+end
+