diff --git a/openldap_update_modules_path.sh b/openldap_update_modules_path.sh
index 006a71d..1e7bf0c 100644
--- a/openldap_update_modules_path.sh
+++ b/openldap_update_modules_path.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 # this script has been created to update the OpenLDAP modules path in cn=config
 # For details of changing the configuration items' location read these:
 # https://www.openldap.org/lists/openldap-software/200812/msg00080.html