diff --git a/ports/esp32/boards/GENERIC/sdkconfig.ota b/ports/esp32/boards/GENERIC/sdkconfig.ota
index 7ff939aa99..4a164aa6f8 100644
--- a/ports/esp32/boards/GENERIC/sdkconfig.ota
+++ b/ports/esp32/boards/GENERIC/sdkconfig.ota
@@ -1,6 +1,6 @@
 CONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE=y
 CONFIG_PARTITION_TABLE_CUSTOM=y
-CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions-ota.csv"
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions-4MiB-ota.csv"
 
 # Reduce firmware size to fit in the OTA partition.
 CONFIG_COMPILER_OPTIMIZATION_CHECKS_SILENT=y
diff --git a/ports/esp32/boards/sdkconfig.base b/ports/esp32/boards/sdkconfig.base
index b98d5d0678..7443b34aa7 100644
--- a/ports/esp32/boards/sdkconfig.base
+++ b/ports/esp32/boards/sdkconfig.base
@@ -67,7 +67,7 @@ CONFIG_ULP_COPROC_RESERVE_MEM=2040
 # For cmake build
 CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 CONFIG_PARTITION_TABLE_CUSTOM=y
-CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions-4MiB.csv"
 
 # To reduce iRAM usage
 CONFIG_ESP32_WIFI_IRAM_OPT=n
diff --git a/ports/esp32/partitions-ota.csv b/ports/esp32/partitions-4MiB-ota.csv
similarity index 100%
rename from ports/esp32/partitions-ota.csv
rename to ports/esp32/partitions-4MiB-ota.csv
diff --git a/ports/esp32/partitions.csv b/ports/esp32/partitions-4MiB.csv
similarity index 100%
rename from ports/esp32/partitions.csv
rename to ports/esp32/partitions-4MiB.csv