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diff --git a/spec/ruby/README.md b/spec/ruby/README.md
index 970688a623..9c13ede75c 100644
--- a/spec/ruby/README.md
+++ b/spec/ruby/README.md
@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.org/ruby/spec.svg)](https://travis-ci.org/ruby/spec)
 [![Build Status](https://ci.appveyor.com/api/projects/status/1gs6f399320o44b1?svg=true)](https://ci.appveyor.com/project/eregon/spec-x948i)
+[![Gitter](https://badges.gitter.im/ruby/spec.svg)](https://gitter.im/ruby/spec)
 
 The Ruby Spec Suite is a test suite for the behavior of the Ruby programming language.