diff --git a/check_memory/check_memory b/check_memory/check_memory
index bf46711..fa2c47c 100644
--- a/check_memory/check_memory
+++ b/check_memory/check_memory
@@ -27,7 +27,7 @@ use Nagios::Plugin;

 $PROGNAME = "check_memory";
 $VERSION = '1.0.1';
-$FREECMD = '/usr/bin/free';
+$FREECMD = 'LANG=C /usr/bin/free';
 $UNIT = 'M';

 my $np = Nagios::Plugin->new(
