diff --git a/test/parser/helper.rb b/test/parser/helper.rb
index c3dae2c2..d3de61d1 100644
--- a/test/parser/helper.rb
+++ b/test/parser/helper.rb
@@ -1,5 +1,5 @@
 require_relative "../helper"
-
+require "parslet/convenience"
 # Included in parser test will create tests methods
 module ParserHelper
   
@@ -16,7 +16,7 @@ module ParserHelper
 
     # check that @string_input parses correctly to @parse_output
     def check_parse
-      is = @parser.parse(@string_input)
+      is = @parser.parse_with_debug(@string_input)
       #puts is.inspect
       assert_equal @parse_output , is
     end