diff --git a/Gemfile b/Gemfile
index 4291426cd2..c974ff13d4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,7 @@
 source "https://rubygems.org"
 
 group :test do
+  gem "rake"
   gem "redcarpet"
   gem "html-proofer"
 end