diff --git a/lib/graders/feature_grader/hw4_grader.rb b/lib/graders/feature_grader/hw4_grader.rb
index 64d59e1e..ae4a7d4b 100644
--- a/lib/graders/feature_grader/hw4_grader.rb
+++ b/lib/graders/feature_grader/hw4_grader.rb
@@ -101,13 +101,13 @@ def runner_block
         log ''
 
         # Check reference cucumber
-        # time_operation 'reference cucumber' do
-        #   log separator
-        #   log 'Running reference Cucumber scenarios:'
-        #   test_prepare(env)
-        #   check_ref_cucumber
-        #   log separator
-        # end
+        time_operation 'reference cucumber' do
+          log separator
+          log 'Running reference Cucumber scenarios:'
+          test_prepare(env)
+          check_ref_cucumber
+          log separator
+        end
       end
       log "Total score: #{@raw_score} / #{@raw_max}"
       log "Completed in #{Time.now-start_time} seconds."