diff --git a/github-linguist.gemspec b/github-linguist.gemspec
index 11fe1be1..d61d7658 100644
--- a/github-linguist.gemspec
+++ b/github-linguist.gemspec
@@ -22,6 +22,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'git'
   s.add_development_dependency 'json'
   s.add_development_dependency 'mocha'
+  s.add_development_dependency 'pry'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'yajl-ruby'
 end