diff --git a/openmptcprouter/files/bin/omr-test-speed b/openmptcprouter/files/bin/omr-test-speed
index 431049e2c..ab8e1a929 100755
--- a/openmptcprouter/files/bin/omr-test-speed
+++ b/openmptcprouter/files/bin/omr-test-speed
@@ -19,9 +19,9 @@ bestping="9999"
 for pinghost in $HOSTLST; do
 	domain=$(echo $pinghost | awk -F/ '{print $3}')
 	if [ -z "$INTERFACE" ] || [ "$FORCEVPS" = true ]; then
-		ping=$(ping -c1 -w2 $domain | cut -d "/" -s -f5 | cut -d "." -f1 | tr -d '\n')
+		ping=$(ping -4 -c1 -w2 $domain | cut -d "/" -s -f5 | cut -d "." -f1 | tr -d '\n')
 	else
-		ping=$(ping -c1 -w2 -I $INTERFACE -B $domain | cut -d "/" -s -f5 | cut -d "." -f1 | tr -d '\n')
+		ping=$(ping -4 -c1 -w2 -I $INTERFACE -B $domain | cut -d "/" -s -f5 | cut -d "." -f1 | tr -d '\n')
 	fi
 	echo "host: $domain - ping: $ping"
 	if [ -n "$ping" ] && [ "$ping" -lt "$bestping" ]; then