diff --git a/tools/idf_py_actions/debug_ext.py b/tools/idf_py_actions/debug_ext.py
index a2617e08def..71e59c846e1 100644
--- a/tools/idf_py_actions/debug_ext.py
+++ b/tools/idf_py_actions/debug_ext.py
@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Apache-2.0
 import json
 import os
@@ -149,11 +149,11 @@ def _get_espcoredump_instance(ctx: Context,
         coredump_to_flash = coredump_to_flash_config.rstrip().endswith('y') if coredump_to_flash_config else False
 
         prog = os.path.join(project_desc['build_dir'], project_desc['app_elf'])
-        esp_port = args.port or get_default_serial_port()
+        args.port = args.port or get_default_serial_port()
 
         espcoredump_kwargs = dict()
 
-        espcoredump_kwargs['port'] = esp_port
+        espcoredump_kwargs['port'] = args.port
         espcoredump_kwargs['baud'] = args.baud
         espcoredump_kwargs['gdb_timeout_sec'] = gdb_timeout_sec
 
diff --git a/tools/idf_py_actions/serial_ext.py b/tools/idf_py_actions/serial_ext.py
index 92c36701cff..d7c5e71c7ff 100644
--- a/tools/idf_py_actions/serial_ext.py
+++ b/tools/idf_py_actions/serial_ext.py
@@ -95,8 +95,8 @@ def monitor(action: str, ctx: click.core.Context, args: PropertyDict, print_filt
                 yellow_print(msg)
                 no_reset = False
 
-            esp_port = args.port or get_default_serial_port()
-            monitor_args += ['-p', esp_port]
+            args.port = args.port or get_default_serial_port()
+            monitor_args += ['-p', args.port]
 
             baud = monitor_baud or os.getenv('IDF_MONITOR_BAUD') or os.getenv('MONITORBAUD')
 
@@ -163,8 +163,8 @@ def flash(action: str, ctx: click.core.Context, args: PropertyDict) -> None:
             yellow_print('skipping flash since running on linux...')
             return
 
-        esp_port = args.port or get_default_serial_port()
-        run_target(action, args, {'ESPBAUD': str(args.baud), 'ESPPORT': esp_port})
+        args.port = args.port or get_default_serial_port()
+        run_target(action, args, {'ESPBAUD': str(args.baud), 'ESPPORT': args.port})
 
     def erase_flash(action: str, ctx: click.core.Context, args: PropertyDict) -> None:
         ensure_build_directory(args, ctx.info_name)