diff --git a/openmptcprouter/files/bin/omr-iperf b/openmptcprouter/files/bin/omr-iperf
index aec04c761..dcacabcae 100755
--- a/openmptcprouter/files/bin/omr-iperf
+++ b/openmptcprouter/files/bin/omr-iperf
@@ -1,5 +1,6 @@
 #!/bin/sh
 SERVER=$1
+shift
 [ -z "$SERVER" ] && SERVER="vps"
 KEY=$(uci -q get iperf.$SERVER.key)
 USER=$(uci -q get iperf.$SERVER.user)
@@ -9,7 +10,7 @@ PORTS=$(uci -q get iperf.$SERVER.ports | sed 's/,/ /g')
 PORT="${PORTS%% *}"
 echo $KEY | base64 -d > /tmp/iperf.pem
 if [ -n "$PASSWORD" ] && [ -n "$USER" ] && [ -n "$KEY" ]; then
-	IPERF3_PASSWORD=$PASSWORD iperf3 --username $USER --rsa-public-key-path /tmp/iperf.pem -c $HOST -p $PORT ${@:2}
+	IPERF3_PASSWORD=$PASSWORD iperf3 --username $USER --rsa-public-key-path /tmp/iperf.pem -c $HOST -p $PORT ${@}
 else
-	iperf3 -c $HOST -p $PORT ${@:2}
+	iperf3 -c $HOST -p $PORT ${@}
 fi