diff --git a/lib/i18n/backend/discourse_i18n.rb b/lib/i18n/backend/discourse_i18n.rb
index 8b18e6f4082..02567a46f44 100644
--- a/lib/i18n/backend/discourse_i18n.rb
+++ b/lib/i18n/backend/discourse_i18n.rb
@@ -3,6 +3,7 @@ require 'i18n/backend/pluralization'
 module I18n
   module Backend
     class DiscourseI18n < I18n::Backend::Simple
+      include I18n::Backend::Fallbacks
       include I18n::Backend::Pluralization
 
       def initialize