diff --git a/test/run_integration.sh b/test/run_integration.sh
index 2e8357d..af6f9dc 100755
--- a/test/run_integration.sh
+++ b/test/run_integration.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 source /home/vagrant/.profile
 rm -rf /home/vagrant/src/acme-dns/*
 cp -R /vagrant/* /home/vagrant/src/acme-dns/