diff --git a/rpi/hardware/rfid/reader.py b/rpi/hardware/rfid/reader.py
index fe4829e4..d1ecee86 100644
--- a/rpi/hardware/rfid/reader.py
+++ b/rpi/hardware/rfid/reader.py
@@ -19,7 +19,7 @@ class RfidReader(SerialReader):
                 hex_value = data[5:11].decode(errors='ignore')
                 try:
                     res = int(hex_value, 16)
-                    formatted_res = f'{{"uid": {data}}}'
+                    formatted_res = f'{{"uid": {res}}}'
                     self._notify(formatted_res)
                 except ValueError:
                     print("Invalid hex:", hex_value)