diff --git a/nginx-static/run.sh b/nginx-static/run.sh
index 4194660..7f722f4 100755
--- a/nginx-static/run.sh
+++ b/nginx-static/run.sh
@@ -4,7 +4,7 @@ set -e # Do not update graphs if jmeter fails
 
 : ${JMETER:=jmeter}
 : ${GNUPLOT:=gnuplot}
-HEAP="-Xms1g -Xmx1g -XX:MaxMetaspaceSize=256m"
+export HEAP="-Xms1g -Xmx1g -XX:MaxMetaspaceSize=256m"
 date="$(date +%F-%H-%M-%S)"
 $JMETER -n -t nginx-static.jmx -l "results-$date.csv" -e -o "report-$date"
 $GNUPLOT -e "dataset='results-$date.csv'" -e "outfile='latency-$date.png'" -p latency.gnuplot