--- a/holland/core/cmdshell.py
+++ b/holland/core/cmdshell.py
@@ -63,6 +63,10 @@ def main():
             args = args[1:]
         return run(['help'] + args)
 
+    # set LANG to C for parsing of lvs and vgs
+    os.environ['LANG'] = 'C'
+    os.environ['LC_ALL'] = 'C'
+
     # Bootstrap the environment
     bootstrap(opts)