diff --git a/.travis.yml b/.travis.yml
index fd881a3a..19f67cc9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,6 +11,7 @@ gemfile:
 matrix:
   allow_failures:
     - gemfile: Gemfile.edge
+    - rvm: jruby-19mode
 notifications:
   email: false
   campfire:
diff --git a/test/unit/active_model/serializer/config_test.rb b/test/unit/active_model/serializer/config_test.rb
index 481a3f15..0a88cfb7 100644
--- a/test/unit/active_model/serializer/config_test.rb
+++ b/test/unit/active_model/serializer/config_test.rb
@@ -58,7 +58,7 @@ module ActiveModel
         def test_setup_acessor_when_nil
           assert_nil CONFIG.foo
           CONFIG.foo = 1
-          assert 1, CONFIG.foo
+          assert_equal 1, CONFIG.foo
           assert_nil CONFIG.bar
         end
       end