diff --git a/check b/check
index 1a37c46..4d049fe 100755
--- a/check
+++ b/check
@@ -168,7 +168,7 @@ function testdf()
   fi
   IFS="
 "
-  for ligne in `df -P -l -x tmpfs -x devtmpfs $fs | sed '/Filesystem/d'`; do
+  for ligne in `LANGUAGE=C df -P -l -x tmpfs -x devtmpfs $fs | sed '/Filesystem/d'`; do
     fs_space=`echo $ligne | awk '{print $5}'| sed 's/\%//'`
     filesys=`echo $ligne | awk '{print $6}'`
     if [ $fs_space -gt $limite ]; then