diff --git a/modoboa/admin/tests/dovecot b/modoboa/admin/tests/dovecot
index dbb210754..66b2424a1 100755
--- a/modoboa/admin/tests/dovecot
+++ b/modoboa/admin/tests/dovecot
@@ -1,3 +1,3 @@
-#!/bin/bash
+#!/bin/sh
 
 echo "2.12"