diff --git a/configs/ea3131/locked/mklocked.sh b/configs/ea3131/locked/mklocked.sh
index bf6d526147..3bfd0726d3 100755
--- a/configs/ea3131/locked/mklocked.sh
+++ b/configs/ea3131/locked/mklocked.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 ###########################################################################
 # configs/ea3131/locked/mklocked.sh
 #