diff --git a/etc/rc.d/dhclient b/etc/rc.d/dhclient
index fb286bd1d9a9..93848f22f0ce 100755
--- a/etc/rc.d/dhclient
+++ b/etc/rc.d/dhclient
@@ -34,7 +34,7 @@ dhclient_start()
 	fi
 
 	background_dhclient=`get_if_var $ifn background_dhclient_IF $background_dhclient`
-	if checkyesno background_dhclient_$ifn; then
+	if checkyesno background_dhclient; then
 		rc_flags="${rc_flags} -b"
 	fi