diff --git a/root/etc/init.d/mosdns b/root/etc/init.d/mosdns
index ae9b00c..f3d7a44 100755
--- a/root/etc/init.d/mosdns
+++ b/root/etc/init.d/mosdns
@@ -64,7 +64,7 @@ start_service() {
 	[ $enabled != 1 ] && return 1
 	delcron
 	setcron
-	echo '' > $(uci -q get mosdns.mosdns.logfile)
+	cat /dev/null > $(uci -q get mosdns.mosdns.logfile)
 	procd_open_instance mosdns
 	procd_set_param command $PROG -c "$CONF"
 	procd_set_param user root