diff --git a/scripts/gentls_cert.in b/scripts/gentls_cert.in
index e397e97d61..26da60c7f8 100644
--- a/scripts/gentls_cert.in
+++ b/scripts/gentls_cert.in
@@ -82,7 +82,7 @@ setup_ca() {
 
 	openssl req -out "${CONFDIR}/CA/cacert.pem" \
 		-new -x509 -keyout "${CONFDIR}/CA/cakey.pem" \
-		-config "${TMPFILE}.cfg" -nodes -sha1 >/dev/null || exit 1
+		-config "${TMPFILE}.cfg" -nodes -days ${DAYS} -sha1 >/dev/null || exit 1
 	cat "${CONFDIR}/CA/cacert.pem" > "${CONFDIR}/cafile.pem"
 	rm "${TMPFILE}.cfg"