diff --git a/engine.py b/engine.py
index a5c5797..67be0fb 100644
--- a/engine.py
+++ b/engine.py
@@ -328,7 +328,8 @@ def main(args):
                      environment_id=args.get("environment_id"),
                      output_directory = args.get("output_directory"),
                      server_side=args.get("server_side"),
-                     log_level=args["log"])
+                     log_level=args["log"],
+                     demo_mode=args["demo-mode"])
         eng.initialize_nfqueue()
         while True:
             time.sleep(0.5)