diff --git a/xCAT-server/share/xcat/scripts/xdcpmerge.sh b/xCAT-server/share/xcat/scripts/xdcpmerge.sh
index a2d602d78..e590cb96e 100755
--- a/xCAT-server/share/xcat/scripts/xdcpmerge.sh
+++ b/xCAT-server/share/xcat/scripts/xdcpmerge.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # This script is used by the xdcp MERGE: function to perform the
 # merge operation on the nodes for the /etc/passwd, /etc/shadow and 
 # and /etc/group files. These are the only supported files for merge.