diff --git a/CheckIntegrity b/CheckIntegrity
index 6d0f9af..8aea056 100755
--- a/CheckIntegrity
+++ b/CheckIntegrity
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 f=$1
 f+="sum $2 | cut -d ' ' -f1"