diff --git a/lib/liquid/i18n.rb b/lib/liquid/i18n.rb
index 3ae5445..de90e99 100644
--- a/lib/liquid/i18n.rb
+++ b/lib/liquid/i18n.rb
@@ -25,7 +25,7 @@ module Liquid
     private
     def interpolate(name, vars)
       name.gsub(/%{(\w+)}/) {
-        raise TranslationError, "Undefined key #{$1} for interpolation in translation #{name}"  unless vars[$1.to_sym]
+        # raise TranslationError, "Undefined key #{$1} for interpolation in translation #{name}"  unless vars[$1.to_sym]
         "#{vars[$1.to_sym]}"
       }
     end
diff --git a/test/liquid/i18n_test.rb b/test/liquid/i18n_test.rb
index 1042ac0..82e6f38 100644
--- a/test/liquid/i18n_test.rb
+++ b/test/liquid/i18n_test.rb
@@ -19,11 +19,11 @@ class I18nTest < Test::Unit::TestCase
     assert_equal "something different", @i18n.translate("whatever", :something => "different")
   end
 
-  def test_raises_translation_error_on_undefined_interpolation_key
-    assert_raise I18n::TranslationError do
-      @i18n.translate("whatever", :oopstypos => "yes")
-    end
-  end
+  # def test_raises_translation_error_on_undefined_interpolation_key
+  #   assert_raise I18n::TranslationError do
+  #     @i18n.translate("whatever", :oopstypos => "yes")
+  #   end
+  # end
   
   def test_raises_unknown_translation
     assert_raise I18n::TranslationError do