diff --git a/env/DAMASK.csh b/env/DAMASK.csh
index 5529eac23..cc61449d2 100644
--- a/env/DAMASK.csh
+++ b/env/DAMASK.csh
@@ -51,4 +51,4 @@ else
   setenv PYTHONPATH $DAMASK_ROOT/python:$PYTHONPATH
 endif
 setenv MSC_ROOT
-setenv MARC_VERSION
+setenv MSC_VERSION
diff --git a/installation/mods_MarcMentat/apply_DAMASK_modifications.py b/installation/mods_MarcMentat/apply_DAMASK_modifications.py
index 51f5e2312..407c33558 100755
--- a/installation/mods_MarcMentat/apply_DAMASK_modifications.py
+++ b/installation/mods_MarcMentat/apply_DAMASK_modifications.py
@@ -7,15 +7,15 @@ from pathlib import Path
 
 import damask
 
-marc_version = float(damask.environment.options['MSC_VERSION'])
-if int(marc_version) == marc_version:
-    marc_version = int(marc_version)
+msc_version = float(damask.environment.options['MSC_VERSION'])
+if int(msc_version) == msc_version:
+    msc_version = int(msc_version)
 msc_root     = Path(damask.environment.options['MSC_ROOT'])
 damask_root  = damask.environment.root_dir
 
 parser = argparse.ArgumentParser(
      description='Apply DAMASK modification to MSC.Marc/Mentat',
-     epilog = f'MSC_ROOT={msc_root} and MSC_VERSION={marc_version} (from {damask_root}/env/CONFIG)')
+     epilog = f'MSC_ROOT={msc_root} and MSC_VERSION={msc_version} (from {damask_root}/env/CONFIG)')
 parser.add_argument('--editor', dest='editor', metavar='string', default='vi',
                     help='Name of the editor for MSC.Mentat (executable)')
 
@@ -24,7 +24,7 @@ def copy_and_replace(in_file,dst):
     with open(in_file) as f:
         content = f.read()
     content = content.replace('%INSTALLDIR%',str(msc_root))
-    content = content.replace('%VERSION%',str(marc_version))
+    content = content.replace('%VERSION%',str(msc_version))
     content = content.replace('%EDITOR%', parser.parse_args().editor)
     with open(dst/Path(in_file).name,'w') as f:
         f.write(content)
@@ -32,36 +32,36 @@ def copy_and_replace(in_file,dst):
 
 print('adapting Marc tools...\n')
 
-src = damask_root/f'installation/mods_MarcMentat/{marc_version}/Marc_tools'
-dst = msc_root/f'marc{marc_version}/tools'
+src = damask_root/f'installation/mods_MarcMentat/{msc_version}/Marc_tools'
+dst = msc_root/f'marc{msc_version}/tools'
 for in_file in glob.glob(str(src/'*damask*')) + [str(src/'include_linux64')]:
     copy_and_replace(in_file,dst)
 
 
 print('adapting Mentat scripts and menus...\n')
 
-src = damask_root/f'installation/mods_MarcMentat/{marc_version}/Mentat_bin'
-dst = msc_root/f'mentat{marc_version}/bin'
+src = damask_root/f'installation/mods_MarcMentat/{msc_version}/Mentat_bin'
+dst = msc_root/f'mentat{msc_version}/bin'
 for in_file in glob.glob(str(src/'*[!.original]')):
     copy_and_replace(in_file,dst)
 
-src = damask_root/f'installation/mods_MarcMentat/{marc_version}/Mentat_menus'
-dst = msc_root/f'mentat{marc_version}/menus'
+src = damask_root/f'installation/mods_MarcMentat/{msc_version}/Mentat_menus'
+dst = msc_root/f'mentat{msc_version}/menus'
 for in_file in glob.glob(str(src/'job_run.ms')):
     copy_and_replace(in_file,dst)
 
 
 print('compiling Mentat menu binaries...')
 
-executable = str(msc_root/f'mentat{marc_version}/bin/mentat')
-menu_file  = str(msc_root/f'mentat{marc_version}/menus/linux64/main.msb')
+executable = str(msc_root/f'mentat{msc_version}/bin/mentat')
+menu_file  = str(msc_root/f'mentat{msc_version}/menus/linux64/main.msb')
 os.system(f'xvfb-run {executable} -compile {menu_file}')
 
 
 print('setting file access rights...\n')
 
-for pattern in [msc_root/f'marc{marc_version}/tools/*damask*',
-                msc_root/f'mentat{marc_version}/bin/submit?',
-                msc_root/f'mentat{marc_version}/bin/kill?']:
+for pattern in [msc_root/f'marc{msc_version}/tools/*damask*',
+                msc_root/f'mentat{msc_version}/bin/submit?',
+                msc_root/f'mentat{msc_version}/bin/kill?']:
     for f in glob.glob(str(pattern)):
         os.chmod(f,0o755)