diff --git a/import_problem b/import_problem
--- a/import_problem
+++ b/import_problem
@@ -35,7 +35,7 @@
   end
 end
 
-GRADER_DIR = "/home/jittat/grader/grader_ng"
+GRADER_DIR = File.dirname(__FILE__)
 
 # print usage
 if ARGV.length < 3