diff --git a/xCAT-server/lib/xcat/plugins/debian.pm b/xCAT-server/lib/xcat/plugins/debian.pm
index 823e80b36..8260874ea 100644
--- a/xCAT-server/lib/xcat/plugins/debian.pm
+++ b/xCAT-server/lib/xcat/plugins/debian.pm
@@ -942,7 +942,7 @@ sub mknetboot
     if ($req->{command}->[0] =~ 'mkstatelite') {
         $statelite = "true";
     }
-    my $bootparams = ${$request->{bootparams}};
+    my $bootparams = ${$req->{bootparams}};
     my $tftpdir = "/tftpboot";
     my $nodes   = @{ $req->{node} };
     my @args    = @{ $req->{arg} };