diff --git a/xCAT-server/lib/xcat/plugins/petitboot.pm b/xCAT-server/lib/xcat/plugins/petitboot.pm
index cea7eeaea..d40e60694 100644
--- a/xCAT-server/lib/xcat/plugins/petitboot.pm
+++ b/xCAT-server/lib/xcat/plugins/petitboot.pm
@@ -5,6 +5,7 @@ use File::Path;
 use Getopt::Long;
 use xCAT::Table;
 use Sys::Syslog;
+use xCAT::Scope;
 
 my $globaltftpdir = xCAT::TableUtils->getTftpDir();