diff --git a/examples/lighting-app/stm32/include/STM32WB5/CHIPProjectConfig.h b/examples/lighting-app/stm32/include/STM32WB5/CHIPProjectConfig.h
index a911c565e95a1b..a20356b714fef2 100644
--- a/examples/lighting-app/stm32/include/STM32WB5/CHIPProjectConfig.h
+++ b/examples/lighting-app/stm32/include/STM32WB5/CHIPProjectConfig.h
@@ -144,6 +144,9 @@
 #define CHIP_AUTOMATION_LOGGING 1
 
 #define CHIP_DEVICE_CONFIG_MAX_DISCOVERED_IP_ADDRESSES 5
+
+#define CHIP_DEVICE_CONFIG_MAX_DEVICE_NAME_LEN 32
+
 /**
  * HIGHWATERMARK
  *
diff --git a/examples/platform/esp32/external_platform/ESP32_custom/BUILD.gn b/examples/platform/esp32/external_platform/ESP32_custom/BUILD.gn
index d8d2f92b542ac7..b165b3711176ce 100644
--- a/examples/platform/esp32/external_platform/ESP32_custom/BUILD.gn
+++ b/examples/platform/esp32/external_platform/ESP32_custom/BUILD.gn
@@ -29,6 +29,7 @@ declare_args() {
   chip_bt_bluedroid_enabled = true
   chip_max_discovered_ip_addresses = 5
   chip_enable_route_hook = false
+  chip_max_device_name_len = 32
 }
 
 buildconfig_header("custom_buildconfig") {
@@ -61,6 +62,7 @@ buildconfig_header("custom_buildconfig") {
     "EXTERNAL_PLATFORMMANAGERIMPL_HEADER=<external_platform/ESP32_custom/PlatformManagerImpl.h>",
     "CHIP_CONFIG_SOFTWARE_VERSION_NUMBER=${chip_config_software_version_number}",
     "CHIP_DEVICE_CONFIG_MAX_DISCOVERED_IP_ADDRESSES=${chip_max_discovered_ip_addresses}",
+    "CHIP_DEVICE_CONFIG_MAX_DEVICE_NAME_LEN=${chip_max_device_name_len}",
   ]
 
   if (chip_enable_ota_requestor) {