diff --git a/tests/test-clone b/tests/test-clone
--- a/tests/test-clone
+++ b/tests/test-clone
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 mkdir a
 cd a
diff --git a/tests/test-clone-failure b/tests/test-clone-failure
--- a/tests/test-clone-failure
+++ b/tests/test-clone-failure
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # No local source
 hg clone a b