diff --git a/src/ppk2_api/ppk2_api.py b/src/ppk2_api/ppk2_api.py
index 58bab9c..fc34a18 100644
--- a/src/ppk2_api/ppk2_api.py
+++ b/src/ppk2_api/ppk2_api.py
@@ -98,6 +98,9 @@ def __init__(self, port: str, **kwargs):
     def __del__(self):
         """Destructor"""
         try:
+            # reset device
+            self._write_serial((PPK2_Command.RESET,))
+
             if self.ser:
                 self.ser.close()
         except Exception as e: