diff --git a/sbin/ifdown b/sbin/ifdown
index bafbde5..be389c7 100644
--- a/sbin/ifdown
+++ b/sbin/ifdown
@@ -12,11 +12,11 @@ if [ -z "$DEVICE" ]; then
    exit 1
 fi
 
-[ "$NM_CONTROLLED" = "0" ] || exit 0
-
 [ -r $network_devices/ifcfg-${DEVICE} ] &&
    . $network_devices/ifcfg-${DEVICE}
 
+[ "$NM_CONTROLLED" = "no" ] || exit 0
+
 if [ -x $network_devices/ifdown-${DEVICE} ]; then
    $network_devices/ifdown-${DEVICE}
 else