diff --git a/gradio/t2v_1.3B_singleGPU.py b/gradio/t2v_1.3B_singleGPU.py
index 0a752d2..d5e7bdb 100644
--- a/gradio/t2v_1.3B_singleGPU.py
+++ b/gradio/t2v_1.3B_singleGPU.py
@@ -204,4 +204,8 @@ if __name__ == '__main__':
     print("done", flush=True)
 
     demo = gradio_interface()
-    demo.launch(server_name="0.0.0.0", share=False, server_port=7860)
+    if "WAN_USER" in os.environ and "WAN_PWD" in os.environ:
+        demo.launch(server_name="0.0.0.0", share=False, server_port=7860,
+                    auth=(os.environ["WAN_USER"], os.environ["WAN_PWD"]))
+    else:
+        demo.launch(server_name="0.0.0.0", share=False, server_port=7860)