diff --git a/luci-app-omr-bypass/root/etc/init.d/omr-bypass b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
index 735739cc5..bd99749b4 100755
--- a/luci-app-omr-bypass/root/etc/init.d/omr-bypass
+++ b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
@@ -10,7 +10,7 @@ EXTRA_COMMANDS="reload_rules bypass_asn"
 
 _add_proto() {
 	protoname=$1
-	if [ "$(dd if=/proc/net/xt_ndpi/proto bs=4096 | grep $protoname)" = "" ]; then
+	if [ "$(dd if=/proc/net/xt_ndpi/proto bs=4096 2> /dev/null | grep $protoname)" = "" ]; then
 		echo "add_custom $protoname" >/proc/net/xt_ndpi/proto
 	fi
 	hosts="$( uci -q get omr-bypass.$protoname.url )"