diff --git a/lib/js_locale_helper.rb b/lib/js_locale_helper.rb
index 61847405c..d8d9bb831 100644
--- a/lib/js_locale_helper.rb
+++ b/lib/js_locale_helper.rb
@@ -73,6 +73,8 @@ module JsLocaleHelper
   def self.compile_message_format(locale, format)
     ctx = V8::Context.new
     ctx.load(Rails.root + 'lib/javascripts/messageformat.js')
+    path = Rails.root + "lib/javascripts/locale/#{locale}.js"
+    ctx.load(path) if File.exists?(path)
     ctx.eval("mf = new MessageFormat('#{locale}');")
     ctx.eval("mf.precompile(mf.parse(#{format.inspect}))")
 
diff --git a/spec/components/js_locale_helper_spec.rb b/spec/components/js_locale_helper_spec.rb
index ceab7ff6e..c3a8060ab 100644
--- a/spec/components/js_locale_helper_spec.rb
+++ b/spec/components/js_locale_helper_spec.rb
@@ -79,4 +79,9 @@ describe JsLocaleHelper do
     ctx.eval('I18n.messageFormat("simple_MF", {})').should =~ /COUNT/ # error
   end
 
+  it 'load pluralizations rules before precompile' do
+    message = JsLocaleHelper.compile_message_format('ru', 'format')
+    message.should_not match 'Plural Function not found'
+  end
+
 end