Update app.py

app.py

@@ -364,7 +364,7 @@ with gr.Blocks(theme=gr.themes.Soft(), title="Self-Forcing FastRTC Demo") as dem
             gr.Markdown("*Click 'Start Generation' to begin streaming*")
             
             try:
-                rtc_config = get_turn_credentials(hf_token=f"{os.environ.get("HF_TOKEN")}")
+                rtc_config = get_turn_credentials(hf_token=f"{os.environ.get('HF_TOKEN')}")
             except Exception as e:
                 print(f"Warning: Could not get TURN credentials: {e}")
                 rtc_config = None