diff --git a/aruco_realtime.py b/aruco_realtime.py
index e7940c5..121a630 100644
--- a/aruco_realtime.py
+++ b/aruco_realtime.py
@@ -8,10 +8,10 @@ aruco_dict = cv2.aruco.getPredefinedDictionary(cv2.aruco.DICT_4X4_50)
 aruco_params = cv2.aruco.DetectorParameters()
 
 # Specify the RTSP URL
-# rtsp_url = sys.argv[1]
+rtsp_url = sys.argv[1]
 
 # webcam:
-cap = cv2.VideoCapture(0)
+cap = cv2.VideoCapture(rtsp_url)
 
 while True:
     ret, frame = cap.read()