diff --git a/config/locales/plurals.rb b/config/locales/plurals.rb
index 6a2e21f25a4..8a13eda06e6 100644
--- a/config/locales/plurals.rb
+++ b/config/locales/plurals.rb
@@ -24,7 +24,7 @@
   :es => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :et => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :eu => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
-  :fa => { :i18n => { :plural => { :keys => [:other], :rule => lambda { |n| :other } } } },
+  :fa_IR => { :i18n => { :plural => { :keys => [:other], :rule => lambda { |n| :other } } } },
   :fi => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :fil => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| [0, 1].include?(n) ? :one : :other } } } },
   :fo => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },