diff --git a/common.sh b/common.sh
index 93430c4..339c517 100644
--- a/common.sh
+++ b/common.sh
@@ -39,7 +39,7 @@ runmany()
 	local logname
 	set -x
 	for instance in $(seq $COUNT); do
-		logname="${LOGDIR}/${CMD}.${HOSTNAME}.$$.${instance}.log"
+		logname="${LOGDIR}/${CMD}.$(hostname).$$.${instance}.log"
 		$CMD < /dev/null > ${logname} 2>&1 &
 	done
 	set +x