diff --git a/launch.py b/launch.py
index bb02b09f..e3247448 100644
--- a/launch.py
+++ b/launch.py
@@ -5,11 +5,10 @@ import sys
 print('[System ARGV] ' + str(sys.argv))
 
 root = os.path.dirname(os.path.abspath(__file__))
-sys.path.append(root)
-os.chdir(root)
 backend_path = os.path.join(root, 'backend', 'headless')
-if backend_path not in sys.path:
-    sys.path.append(backend_path)
+sys.path += [root, backend_path]
+
+os.chdir(root)
 os.environ["PYTORCH_ENABLE_MPS_FALLBACK"] = "1"
 
 
@@ -87,14 +86,21 @@ def download_models():
     return
 
 
-def ini_cbh_args():
+def ini_fcbh_args():
     from args_manager import args
     return args
 
 
 prepare_environment()
 build_launcher()
-ini_cbh_args()
+args = ini_fcbh_args()
+
+
+if args.cuda_device is not None:
+    os.environ['CUDA_VISIBLE_DEVICES'] = str(args.cuda_device)
+    print("Set device to:", args.cuda_device)
+
+
 download_models()
 
 from webui import *