diff --git a/test/jenkins/_run_ct b/test/jenkins/_run_ct
index 88b5b6cb4..689c6008d 100755
--- a/test/jenkins/_run_ct
+++ b/test/jenkins/_run_ct
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 set -e
 mount --make-rslave /
diff --git a/test/jenkins/run_ct b/test/jenkins/run_ct
index 5992b2ee5..930a1c3c3 100755
--- a/test/jenkins/run_ct
+++ b/test/jenkins/run_ct
@@ -1,3 +1,3 @@
-#!/bin/sh
+#!/bin/bash
 
 unshare --mount --pid --fork -- $(readlink -f `dirname $0`/_run_ct) "$@"