diff --git a/run-onionr-node.py b/run-onionr-node.py
index d4ef3ad5..49d14bb6 100755
--- a/run-onionr-node.py
+++ b/run-onionr-node.py
@@ -82,6 +82,9 @@ parser.add_argument(
 parser.add_argument(
     '--keep-log-on-exit', help='Onionr can keep or delete its log file on exit',
     type=int, default=0)
+parser.add_argument(
+    '--use-upload-mixing', help='Re-upload blocks uploaded to us. Slow but more secure',
+    type=int, default=0)
 args = parser.parse_args()
 
 p = Popen([sub_script, 'version'], stdout=DEVNULL)
@@ -114,6 +117,10 @@ if args.keep_log_on_exit:
     config['log']['file']['remove_on_exit'] = True
 else:
     config['log']['file']['remove_on_exit'] = False
+
+config['general']['upload_mixing'] = False
+if args.use_upload_mixing:
+    config['general']['upload_mixing'] = True
 config['general']['display_header'] = False
 config['general']['security_level'] = args.security_level