diff --git a/installation/Marc_Mentat2010_mods/apply_MPIE_modifications b/installation/Marc_Mentat2010_mods/apply_MPIE_modifications
old mode 100644
new mode 100755
index 6043c086e..2d9f199eb
--- a/installation/Marc_Mentat2010_mods/apply_MPIE_modifications
+++ b/installation/Marc_Mentat2010_mods/apply_MPIE_modifications
@@ -1,22 +1,24 @@
 #!/bin/bash
+
+WORKINGDIR=`dirname $0`
 INSTALLDIR="/msc"
 echo "Input path of MARC/MENTAT installation: [$INSTALLDIR]"
 read INSTALLDIR
 if [ $INSTALLDIR = ""] ; then
    INSTALLDIR="/msc"
 fi
-cp ./Marc_tools/comp_user $INSTALLDIR/marc2010/tools
-cp ./Marc_tools/comp_user_h $INSTALLDIR/marc2010/tools
-cp ./Marc_tools/comp_user_mp $INSTALLDIR/marc2010/tools
-cp ./Marc_tools/run_marc $INSTALLDIR/marc2010/tools
-cp ./Marc_tools/run_h_marc $INSTALLDIR/marc2010/tools
-cp ./Marc_tools/run_mp_marc $INSTALLDIR/marc2010/tools
-cp ./Marc_tools/include_linux64 $INSTALLDIR/marc2010/tools
-cp ./Mentat_bin/edit_window $INSTALLDIR/mentat2010/bin
-cp ./Mentat_bin/submit1 $INSTALLDIR/mentat2010/bin
-cp ./Mentat_bin/submit2 $INSTALLDIR/mentat2010/bin
-cp ./Mentat_bin/submit3 $INSTALLDIR/mentat2010/bin
-cp ./Mentat_menus/job_run.ms $INSTALLDIR/mentat2010/menus
+cp $WORKINGDIR/Marc_tools/comp_user $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Marc_tools/comp_user_h $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Marc_tools/comp_user_mp $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Marc_tools/run_marc $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Marc_tools/run_h_marc $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Marc_tools/run_mp_marc $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Marc_tools/include_linux64 $INSTALLDIR/marc2010/tools
+cp $WORKINGDIR/Mentat_bin/edit_window $INSTALLDIR/mentat2010/bin
+cp $WORKINGDIR/Mentat_bin/submit1 $INSTALLDIR/mentat2010/bin
+cp $WORKINGDIR/Mentat_bin/submit2 $INSTALLDIR/mentat2010/bin
+cp $WORKINGDIR/Mentat_bin/submit3 $INSTALLDIR/mentat2010/bin
+cp $WORKINGDIR/Mentat_menus/job_run.ms $INSTALLDIR/mentat2010/menus
 $INSTALLDIR/mentat2010/bin/mentat -compile $INSTALLDIR/mentat2010/menus/linux64/main.msb
 chmod 555 $INSTALLDIR/marc2010/tools/run_*_marc
-chmod 555 $INSTALLDIR/marc2010/tools/comp_user?*
\ No newline at end of file
+chmod 555 $INSTALLDIR/marc2010/tools/comp_user?*