diff --git a/platformio.ini b/platformio.ini
index e75b3b384..4b567b2d7 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -53,6 +53,7 @@ unbuild_flags =
 framework = arduino
 board_build.partitions = partitions/esp32_partition_16M.csv
 board_upload.flash_size = 16MB
+board_build.app_partition_name = app0
 platform = espressif32@6.9.0 ; Arduino Core 2.0.18 / IDF 4.4.8
 ; platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.11/platform-espressif32.zip ; Arduino Core 3.1.1 / IDF 5.3.2
 ;
@@ -87,6 +88,7 @@ platform = espressif32@6.9.0 ; Arduino Core 2.0.18 / IDF 4.4.8
 framework = arduino
 board_build.partitions = partitions/esp32_partition_32M.csv
 board_upload.flash_size = 32MB
+board_build.app_partition_name = app0
 platform = espressif32@6.9.0 ; Arduino Core 2.0.18 / IDF 4.4.8
 
 ; use Tasmota's library for 4MB Flash variants.
@@ -95,6 +97,7 @@ platform = espressif32@6.9.0 ; Arduino Core 2.0.18 / IDF 4.4.8
 framework = arduino
 board_build.partitions = partitions/esp32_partition_4M.csv
 board_upload.flash_size = 4MB
+board_build.app_partition_name = app0
 platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.06.00/platform-espressif32.zip  ; Arduino Core 2.0.18 with IPv6 support, based on IDF 4.4.8
 ; platform = https://github.com/tasmota/platform-espressif32/releases/download/2025.01.31/platform-espressif32.zip  ; Arduino Core 3.1.1, based on IDF 5.3.2
 
@@ -104,6 +107,7 @@ platform = https://github.com/tasmota/platform-espressif32/releases/download/202
 framework = arduino
 board_build.partitions = partitions/esp32_partition_16M.csv
 board_upload.flash_size = 16MB
+board_build.app_partition_name = app0
 platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.06.00/platform-espressif32.zip ; Arduino Core 2.0.18 with IPv6 support, based on IDF 4.4.8
 ; platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.12.30/platform-espressif32.zip ; Arduino Core 3.1.0.241206 based on IDF 5.3.2