1 files changed, 1 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index 29319e41a..0a2e1f927 100644
--- a/Gemfile
+++ b/Gemfile
@@ -41,4 +41,5 @@ end
 
 group :develop do
   gem 'ruby-debug'
+  gem 'annotate'
 end