diff --git a/main.py b/main.py
index c84fa85..6df6315 100755
--- a/main.py
+++ b/main.py
@@ -92,7 +92,8 @@ def ws_handler():
             sumorobot.calibrate_line_value()
             #print('calibrate_line')
         elif b'calibrate_line_threshold' in data:
-            sumorobot.calibrate_line_threshold()
+            data = ujson.loads(data)
+            sumorobot.calibrate_line_threshold(int(data['val']))
             #print('calibrate_threshold')
         elif b'Gone' in data:
             print("server said 410 Gone, attempting to reconnect...")