diff --git a/xCAT-server/lib/xcat/plugins/sinv.pm b/xCAT-server/lib/xcat/plugins/sinv.pm
index 6f30b99bb..b1c61b673 100644
--- a/xCAT-server/lib/xcat/plugins/sinv.pm
+++ b/xCAT-server/lib/xcat/plugins/sinv.pm
@@ -14,6 +14,7 @@ package xCAT_plugin::sinv;
 use strict;
 
 require xCAT::Utils;
+require xCAT::SINV;
 
 require xCAT::MsgUtils;
 use Getopt::Long;