diff --git a/xCAT-client/sbin/dumpxCATdb b/xCAT-client/sbin/dumpxCATdb
index db5b9d583..2488d8cef 100644
--- a/xCAT-client/sbin/dumpxCATdb
+++ b/xCAT-client/sbin/dumpxCATdb
@@ -15,6 +15,7 @@ use lib "$::XCATROOT/lib/perl";
 use Getopt::Long;
 use xCAT::MsgUtils;
 use xCAT::Utils;
+use strict;
 
 #-----------------------------------------------------------------------------