diff --git a/build_par_file.sh b/build_par_file.sh
index 9ec8bb3cff4efc4cc4d19c7b4c403c174c5fcf69..0adb7de19abc7c022d0ac5ba6c5dd3725f979c78 100644
--- a/build_par_file.sh
+++ b/build_par_file.sh
@@ -1,8 +1,10 @@
-#!/bin/sh
+#!/bin/bash
 # Script to bundle Perl-Module with Script
 # by Andreas Romeyke @ SLUB Dresden
+
 REQUIRED_PERL_MODULE=PAR::Packer
 WHAT_TO_BUNDLE=bin/slubsipbuilderbagit.pl
+LIB_TO_BUNDLE="-I lib/ -M SLUB::LZA::SIPBuilderBagIt"
 BUNDLE_NAME=slubsipbuilder_bundled.pl
 BUNDLE_LOG=bundle.log
 echo -n "Checking if required module exists… "
@@ -20,7 +22,9 @@ echo -n "Trying to bundle… "
 # -c .... check dependencies via 'perl -c ...'
 # -P .... build a Perl-script bundle
 # -o .... output as
-pp -c -P -o ${BUNDLE_NAME} ${WHAT_TO_BUNDLE} > ${BUNDLE_LOG} 2>&1
+# -d .... do not include perl interpreter
+#VERBOSE=1 pp ${LIB_TO_BUNDLE} -x -c -d -P -r -z 9 -o ${BUNDLE_NAME} ${WHAT_TO_BUNDLE} > ${BUNDLE_LOG} 2>&1
+pp -o ${BUNDLE_NAME} -P -u -d ${LIB_TO_BUNDLE} ${WHAT_TO_BUNDLE} > ${BUNDLE_LOG} 2>&1
 if [[ $? -eq 0 ]]; then 
   echo "fine :)"
   echo "Successfully build bundles in ${BUNDLE_NAME}"
@@ -30,4 +34,3 @@ else
   echo "Something was wrong in bundling to ${BUNDLE_NAME}"
   echo "Check ${BUNDLE_LOG} for details"
 fi
-