diff --git a/tool/camview_server.py b/tool/camview_server.py
index dcd98bc..39b77f4 100644
--- a/tool/camview_server.py
+++ b/tool/camview_server.py
@@ -154,7 +154,7 @@ def allowed(ip):
 
 def main():
     ap = argparse.ArgumentParser()
-    ap.add_argument("--dev", default="/dev/video0")
+    ap.add_argument("--dev", default="/dev/v4l/by-id/usb-USB_Camera_1080P_USB_Camera_1080P_01.00.00-video-index0")
     ap.add_argument("--size", default="1280x720")
     ap.add_argument("--fps", type=int, default=30)
     ap.add_argument("--port", type=int, default=7710)