diff --git a/hr_attendance_rfid/models/hr_employee.py b/hr_attendance_rfid/models/hr_employee.py
index d2cf82a0..2cde6c2f 100644
--- a/hr_attendance_rfid/models/hr_employee.py
+++ b/hr_attendance_rfid/models/hr_employee.py
@@ -69,6 +69,6 @@ def register_attendance(self, card_code):
                 res["error_message"] = msg
                 return res
         except Exception as e:
-            res["error_message"] = e
-            _logger.error(e)
+            res["error_message"] = str(e)
+            _logger.error(str(e))
         return res