diff --git a/.travis.yml b/.travis.yml
index 5f55b9f..c7c0136 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,5 @@
 sudo: false
 language: ruby
-rvm:
-  - 2.2.5
-  - 2.3.1
-  - rbx
-  - jruby-9
 
 before_install:
   - rvm get head
@@ -14,5 +9,12 @@ install: 'gem install bundler; bundle install --retry=3'
 script: 'ruby -vr bundler/setup -S rake test'
 
 matrix:
+  include:
+    - rvm: 2.2.5
+    - rvm: 2.3.1
+    - rvm: jruby-9
+      env: JRUBY_OPTS=--debug
+    - rvm: rbx
+
   allow_failures:
   - rvm: rbx
diff --git a/README.md b/README.md
index 9adc097..a099839 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# RubyQC [![Build Status](https://secure.travis-ci.org/godfat/rubyqc.png?branch=master)](http://travis-ci.org/godfat/rubyqc) [![Coverage Status](https://coveralls.io/repos/godfat/rubyqc/badge.png)](https://coveralls.io/r/godfat/rubyqc) [![Join the chat at https://gitter.im/godfat/rubyqc](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/godfat/rubyqc)
+# RubyQC [![Build Status](https://secure.travis-ci.org/godfat/rubyqc.png?branch=master)](http://travis-ci.org/godfat/rubyqc) [![Coverage Status](https://coveralls.io/repos/github/godfat/rubyqc/badge.png)](https://coveralls.io/github/godfat/rubyqc) [![Join the chat at https://gitter.im/godfat/rubyqc](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/godfat/rubyqc)
 
 by Lin Jen-Shin ([godfat](http://godfat.org))