diff --git a/google-cloud-storage/.rubocop.yml b/google-cloud-storage/.rubocop.yml
index ba349ea2a63a..6183ea07f785 100644
--- a/google-cloud-storage/.rubocop.yml
+++ b/google-cloud-storage/.rubocop.yml
@@ -1,3 +1,5 @@
+require: rubocop-minitest
+
 inherit_gem:
   google-style: google-style.yml
 
diff --git a/google-cloud-storage/Gemfile b/google-cloud-storage/Gemfile
index 042f29842de6..cd2f15046fe6 100644
--- a/google-cloud-storage/Gemfile
+++ b/google-cloud-storage/Gemfile
@@ -11,3 +11,4 @@ gem "minitest-reporters", "~> 1.3.5", require: false
 gem "rake"
 
 gem "minitest"
+gem "rubocop-minitest"