diff --git a/remote_control/opencv_viewer_example.py b/remote_control/opencv_viewer_example.py
index 156e852..616dae5 100644
--- a/remote_control/opencv_viewer_example.py
+++ b/remote_control/opencv_viewer_example.py
@@ -8,7 +8,7 @@ from queue import Queue
 
 import aruco
 
-class ArucoEstimator(socketserver.BaseRequestHandler):
+class ArucoEstimator:
     corner_marker_ids = {
         'a': 15,
         'b': 1,