--- a/diffbind.xml	Thu Jan 16 04:17:16 2014 -0500
+++ b/diffbind.xml	Fri Jan 17 04:04:16 2014 -0500
@@ -6,6 +6,7 @@
         <requirement type="package" version="3.0.1">R_3_0_1</requirement>
         <requirement type="package" version="1.0.17">deseq2</requirement>
         <requirement type="package" version="1.8.3">diffbind</requirement>
+        <requirement type="set_environment">DIFFBIND_SCRIPT_PATH</requirement>
     </requirements>
     <command>
         ## seems that diffbind also needs file extensions to work properly
@@ -18,7 +19,7 @@
             #set $counter = $counter + 1
         #end for
 
-        Rscript /usr/local/galaxy/shed_tools/testtoolshed.g2.bx.psu.edu/repos/bgruening/diffbind/7929c8b3f6f9/diffbind/diffbind.R
+        Rscript \$AUGUSTUS_SCRIPT_PATH/diffbind.R
             -i $infile
             -o $outfile
             -p $plots