diff --git a/README.md b/README.md
index 0a4b9ce01..602361752 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,7 @@ Choose IDF target.
 idf.py set-target esp32c3 (or esp32 or other supported targets)
 ```
 
+*   If IDF target has not been set explicitly, then `esp32` is considered as default.
 *   The default device for `esp32`/`esp32c3` is `esp32-devkit-c`/`esp32c3-devkit-m`. If you want to use another device, you can export `ESP_MATTER_DEVICE_PATH` after choosing correct target, e.g for `m5stack` device:
     ```
     $ export ESP_MATTER_DEVICE_PATH=/path/to/esp_matter/device_hal/device/m5stack
diff --git a/examples/light/CMakeLists.txt b/examples/light/CMakeLists.txt
index 57a7e8366..fcbf1796a 100644
--- a/examples/light/CMakeLists.txt
+++ b/examples/light/CMakeLists.txt
@@ -5,8 +5,9 @@ cmake_minimum_required(VERSION 3.5)
 if(NOT DEFINED ENV{ESP_MATTER_PATH})
     message(FATAL_ERROR "Please set ESP_MATTER_PATH to the path of esp-matter repo")
 endif(NOT DEFINED ENV{ESP_MATTER_PATH})
+
 if(NOT DEFINED ENV{ESP_MATTER_DEVICE_PATH})
-    if("${IDF_TARGET}" STREQUAL "esp32")
+    if("${IDF_TARGET}" STREQUAL "esp32" OR "${IDF_TARGET}" STREQUAL "")
         set(ENV{ESP_MATTER_DEVICE_PATH} $ENV{ESP_MATTER_PATH}/device_hal/device/esp32_devkit_c)
     elseif("${IDF_TARGET}" STREQUAL "esp32c3")
         set(ENV{ESP_MATTER_DEVICE_PATH} $ENV{ESP_MATTER_PATH}/device_hal/device/esp32c3_devkit_m)
@@ -16,6 +17,7 @@ if(NOT DEFINED ENV{ESP_MATTER_DEVICE_PATH})
         message(FATAL_ERROR "Unsupported IDF_TARGT")
     endif()
 endif(NOT DEFINED ENV{ESP_MATTER_DEVICE_PATH})
+
 set(ESP_MATTER_PATH $ENV{ESP_MATTER_PATH})
 set(MATTER_SDK_PATH ${ESP_MATTER_PATH}/connectedhomeip/connectedhomeip)
 
diff --git a/examples/rainmaker_light/CMakeLists.txt b/examples/rainmaker_light/CMakeLists.txt
index 4d7aefc5d..7ff411f2e 100644
--- a/examples/rainmaker_light/CMakeLists.txt
+++ b/examples/rainmaker_light/CMakeLists.txt
@@ -5,8 +5,9 @@ cmake_minimum_required(VERSION 3.5)
 if(NOT DEFINED ENV{ESP_MATTER_PATH})
     message(FATAL_ERROR "Please set ESP_MATTER_PATH to the path of esp-matter repo")
 endif(NOT DEFINED ENV{ESP_MATTER_PATH})
+
 if(NOT DEFINED ENV{ESP_MATTER_DEVICE_PATH})
-    if("${IDF_TARGET}" STREQUAL "esp32")
+    if("${IDF_TARGET}" STREQUAL "esp32" OR "${IDF_TARGET}" STREQUAL "")
         set(ENV{ESP_MATTER_DEVICE_PATH} $ENV{ESP_MATTER_PATH}/device_hal/device/esp32_devkit_c)
     elseif("${IDF_TARGET}" STREQUAL "esp32c3")
         set(ENV{ESP_MATTER_DEVICE_PATH} $ENV{ESP_MATTER_PATH}/device_hal/device/esp32c3_devkit_m)
@@ -14,6 +15,7 @@ if(NOT DEFINED ENV{ESP_MATTER_DEVICE_PATH})
         message(FATAL_ERROR "Unsupported IDF_TARGET")
     endif()
 endif(NOT DEFINED ENV{ESP_MATTER_DEVICE_PATH})
+
 set(ESP_MATTER_PATH $ENV{ESP_MATTER_PATH})
 set(MATTER_SDK_PATH ${ESP_MATTER_PATH}/connectedhomeip/connectedhomeip)