diff --git a/xCAT-server/lib/xcat/plugins/pxe.pm b/xCAT-server/lib/xcat/plugins/pxe.pm
index 3b352b784..a6c259648 100644
--- a/xCAT-server/lib/xcat/plugins/pxe.pm
+++ b/xCAT-server/lib/xcat/plugins/pxe.pm
@@ -279,7 +279,7 @@ sub process_request {
   }
 
   #if not shared, then help sync up
-  if ($req->{'_disparatetftp'}->[0]) { #reading hint from preprocess_command
+  if ($request->{'_disparatetftp'}->[0]) { #reading hint from preprocess_command
    @nodes = ();
    foreach (@rnodes) {
      if (xCAT::Utils->nodeonmynet($_)) {