diff --git a/lib/i18n/backend/translate.rb b/lib/i18n/backend/translate.rb
index eb825aa..a520156 100644
--- a/lib/i18n/backend/translate.rb
+++ b/lib/i18n/backend/translate.rb
@@ -28,7 +28,7 @@ def translate(locale, key, options = {})
 
         return nil if tr.to_s.empty?
 
-        values = options.except(*I18n::Backend::Base::RESERVED_KEYS)
+        values = options.except(*RESERVED_KEYS)
 
         tr = resolve(locale, key, tr, options)
         tr = interpolate(locale, tr, values) if values
diff --git a/test/tc_backend_properties.rb b/test/tc_backend_properties.rb
index c9b9309..29e636d 100644
--- a/test/tc_backend_properties.rb
+++ b/test/tc_backend_properties.rb
@@ -26,7 +26,7 @@ def test_1020_escaped_operators_in_key
   end
 
   def test_1030_key_without_assign_and_value
-    assert_equal( "translation missing: cze, empty_key", I18n.t("empty_key") )
+    assert_equal( "translation missing: cze.empty_key", I18n.t("empty_key") )
   end
 
 end