diff --git a/app.py b/app.py
index 28a1491..cce2c75 100644
--- a/app.py
+++ b/app.py
@@ -69,7 +69,6 @@ def worker(id,source,region=None,stream=False):
         if not cap.isOpened():
             print("Error opening video stream.")
         while True:
-            ret, frame = cap.read()
             ret, frame = cap.read()
             if not ret:
                 print("Error read video stream.")