diff --git a/test/plugin/test_in_forward.rb b/test/plugin/test_in_forward.rb
index 6723bdee56..a6386f0f04 100644
--- a/test/plugin/test_in_forward.rb
+++ b/test/plugin/test_in_forward.rb
@@ -218,7 +218,7 @@ def create_driver(conf=CONFIG)
         }
       end
 
-      assert_equal(records, d.events.sort_by {|a| a[1] })
+      assert_equal(records, d.events.sort_by {|a| a[0] })
     end
 
     test 'json_with_newline' do
@@ -237,7 +237,7 @@ def create_driver(conf=CONFIG)
         }
       end
 
-      assert_equal(records, d.events.sort_by {|a| a[1] })
+      assert_equal(records, d.events.sort_by {|a| a[0] })
     end
   end