--- a/gdcwebapp.xml	Tue Jun 13 16:39:45 2017 -0400
+++ b/gdcwebapp.xml	Wed Jun 14 16:20:06 2017 -0400
@@ -3,6 +3,7 @@
     <description>an intuitive interface to filter, extract, and convert Genomic Data Commons experiments</description>
     <requirements>
         <requirement type="package" version="2.7.10">python</requirement>
+        <requirement type="package" version="1.0.0">galaxy_json_collect_data_source</requirement>
     </requirements>
     <stdio>
         <exit_code range="1:" />
@@ -11,7 +12,7 @@
     <command>
         <![CDATA[
             mkdir -p tmp && 
-            python ${__tool_directory__}/json_collect_data_source.py "${__app__.config.output_size_limit}" --json_param_file "${output1}" --path "." --appdata "tmp"
+            python json_collect_data_source.py '${__app__.config.output_size_limit}' --json_param_file '${output1}' --path '.' --appdata 'tmp'
         ]]>
     </command>
     <inputs check_values="False" action="http://bioinf.iasi.cnr.it/gdcwebapp/app.php">