diff --git a/grader b/grader
--- a/grader
+++ b/grader
@@ -277,7 +277,7 @@
   # always use dry run when grading during contest
   contest_name = ARGV.shift
 
-  options[:dry_run] = true
+  dry_run = options[:dry_run] = true
 
   contest = Contest.find_by_name(contest_name)
   if contest==nil