diff --git a/app/controllers/homework_common_controller.rb b/app/controllers/homework_common_controller.rb
index d4a5cab24..bfac1432f 100644
--- a/app/controllers/homework_common_controller.rb
+++ b/app/controllers/homework_common_controller.rb
@@ -73,8 +73,11 @@ class HomeworkCommonController < ApplicationController
 
         if params[:input] && params[:output]
           params[:input].each do |k,v|
-            if params[:output][k]
-
+            if params[:output].include? k
+              homework_test = HomeworkTest.new
+              homework_test.input = v
+              homework_test.output = params[:output][k]
+              homework.homework_tests << homework_test
             end
           end
         end