diff --git a/rails_root/.simplecov b/rails_root/.simplecov
index 7524334..a988ed8 100644
--- a/rails_root/.simplecov
+++ b/rails_root/.simplecov
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+require 'simplecov'
 
 SimpleCov.start 'rails' do
   enable_coverage :branch # see https://github.com/colszowka/simplecov#branch-coverage-ruby--25