diff --git a/config/application.rb b/config/application.rb
index 44a3326a2d..387827784a 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -86,115 +86,6 @@ module Mastodon
     # config.time_zone = "Central Time (US & Canada)"
     # config.eager_load_paths << Rails.root.join("extras")
 
-    # All translations from config/locales/*.rb,yml are auto loaded.
-    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
-    config.i18n.available_locales = [
-      :af,
-      :an,
-      :ar,
-      :ast,
-      :be,
-      :bg,
-      :bn,
-      :br,
-      :bs,
-      :ca,
-      :ckb,
-      :co,
-      :cs,
-      :cy,
-      :da,
-      :de,
-      :el,
-      :en,
-      :'en-GB',
-      :eo,
-      :es,
-      :'es-AR',
-      :'es-MX',
-      :et,
-      :eu,
-      :fa,
-      :fi,
-      :fo,
-      :fr,
-      :'fr-QC',
-      :fy,
-      :ga,
-      :gd,
-      :gl,
-      :he,
-      :hi,
-      :hr,
-      :hu,
-      :hy,
-      :id,
-      :ig,
-      :io,
-      :is,
-      :it,
-      :ja,
-      :ka,
-      :kab,
-      :kk,
-      :kn,
-      :ko,
-      :ku,
-      :kw,
-      :la,
-      :lt,
-      :lv,
-      :mk,
-      :ml,
-      :mr,
-      :ms,
-      :my,
-      :nl,
-      :nn,
-      :no,
-      :oc,
-      :pa,
-      :pl,
-      :'pt-BR',
-      :'pt-PT',
-      :ro,
-      :ru,
-      :sa,
-      :sc,
-      :sco,
-      :si,
-      :sk,
-      :sl,
-      :sq,
-      :sr,
-      :'sr-Latn',
-      :sv,
-      :szl,
-      :ta,
-      :te,
-      :th,
-      :tr,
-      :tt,
-      :ug,
-      :uk,
-      :ur,
-      :vi,
-      :zgh,
-      :'zh-CN',
-      :'zh-HK',
-      :'zh-TW',
-    ]
-
-    config.i18n.default_locale = begin
-      custom_default_locale = ENV['DEFAULT_LOCALE']&.to_sym
-
-      if config.i18n.available_locales.include?(custom_default_locale)
-        custom_default_locale
-      else
-        :en
-      end
-    end
-
     # config.paths.add File.join('app', 'api'), glob: File.join('**', '*.rb')
     # config.autoload_paths += Dir[Rails.root.join('app', 'api', '*')]
 
diff --git a/config/initializers/i18n.rb b/config/initializers/i18n.rb
new file mode 100644
index 0000000000..39b7a3cc40
--- /dev/null
+++ b/config/initializers/i18n.rb
@@ -0,0 +1,110 @@
+# frozen_string_literal: true
+
+Rails.application.configure do
+  config.i18n.available_locales = [
+    :af,
+    :an,
+    :ar,
+    :ast,
+    :be,
+    :bg,
+    :bn,
+    :br,
+    :bs,
+    :ca,
+    :ckb,
+    :co,
+    :cs,
+    :cy,
+    :da,
+    :de,
+    :el,
+    :en,
+    :'en-GB',
+    :eo,
+    :es,
+    :'es-AR',
+    :'es-MX',
+    :et,
+    :eu,
+    :fa,
+    :fi,
+    :fo,
+    :fr,
+    :'fr-QC',
+    :fy,
+    :ga,
+    :gd,
+    :gl,
+    :he,
+    :hi,
+    :hr,
+    :hu,
+    :hy,
+    :id,
+    :ig,
+    :io,
+    :is,
+    :it,
+    :ja,
+    :ka,
+    :kab,
+    :kk,
+    :kn,
+    :ko,
+    :ku,
+    :kw,
+    :la,
+    :lt,
+    :lv,
+    :mk,
+    :ml,
+    :mr,
+    :ms,
+    :my,
+    :nl,
+    :nn,
+    :no,
+    :oc,
+    :pa,
+    :pl,
+    :'pt-BR',
+    :'pt-PT',
+    :ro,
+    :ru,
+    :sa,
+    :sc,
+    :sco,
+    :si,
+    :sk,
+    :sl,
+    :sq,
+    :sr,
+    :'sr-Latn',
+    :sv,
+    :szl,
+    :ta,
+    :te,
+    :th,
+    :tr,
+    :tt,
+    :ug,
+    :uk,
+    :ur,
+    :vi,
+    :zgh,
+    :'zh-CN',
+    :'zh-HK',
+    :'zh-TW',
+  ]
+
+  config.i18n.default_locale = begin
+    custom_default_locale = ENV['DEFAULT_LOCALE']&.to_sym
+
+    if Rails.configuration.i18n.available_locales.include?(custom_default_locale)
+      custom_default_locale
+    else
+      :en
+    end
+  end
+end