diff --git a/check b/check
index 8cee8b8..0c42b24 100755
--- a/check
+++ b/check
@@ -18,12 +18,12 @@ fi
 
 RUNLEVEL=`runlevel | cut -f 2 -d ' '`
 [ "x$RUNLEVEL" == "x" ] && RUNLEVEL=0
-if [ $RUNLEVEL -eq 0 ] || [ $RUNLEVEL -eq 6 ]; then
+if [ "$RUNLEVEL" == "0" ] || [ "$RUNLEVEL" == "6" ]; then
   echo "Arret ou reboot en cours : on sort"
   exit
 fi
 
-if [ $RUNLEVEL -eq 1 ]; then
+if [ "$RUNLEVEL" == "1" ]; then
   echo "Démarrage en cours : on sort"
   exit
 fi