diff --git a/BootLoaders/Boards/boards.txt b/BootLoaders/Boards/boards.txt
index fb3daba..4abfa94 100644
--- a/BootLoaders/Boards/boards.txt
+++ b/BootLoaders/Boards/boards.txt
@@ -17,7 +17,6 @@ multiatmega328p.upload.maximum_data_size=2048
 
 multiatmega328p.build.mcu=atmega328p
 multiatmega328p.build.f_cpu=16000000L
-multiatmega328p.build.board=AVR_PRO
 multiatmega328p.build.core=arduino:arduino
 multiatmega328p.build.variant=arduino:eightanaloginputs
 multiatmega328p.build.extra_flags=-Wl,--relax
@@ -29,11 +28,13 @@ multiatmega328p.bootloader.unlock_bits=0x3F
 multiatmega328p.bootloader.lock_bits=0x0F
 
 multiatmega328p.menu.bootloader.none=No bootloader
+multiatmega328p.menu.bootloader.none.build.board=MULTI_NO_BOOT
 multiatmega328p.menu.bootloader.none.upload.maximum_size=32768
 multiatmega328p.menu.bootloader.none.bootloader.file=Multi4in1/AtmegaMultiEmpty.hex
 multiatmega328p.menu.bootloader.none.bootloader.high_fuses=0xD7
 
 multiatmega328p.menu.bootloader.optiboot=Flash from TX
+multiatmega328p.menu.bootloader.optiboot.build.board=MULTI_FLASH_FROM_TX
 multiatmega328p.menu.bootloader.optiboot.upload.maximum_size=32512
 multiatmega328p.menu.bootloader.optiboot.bootloader.file=Multi4in1/AtmegaMultiBoot.hex
 multiatmega328p.menu.bootloader.optiboot.bootloader.high_fuses=0xD6
diff --git a/BootLoaders/package_multi_4in1_board_index.json b/BootLoaders/package_multi_4in1_board_index.json
index de3ee91..7b352c3 100644
--- a/BootLoaders/package_multi_4in1_board_index.json
+++ b/BootLoaders/package_multi_4in1_board_index.json
@@ -19,8 +19,8 @@
           },
           "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/raw/master/BootLoaders/package_multi_4in1_board_v1.0.0.zip",
           "archiveFileName": "package_multi_4in1_board_v1.0.0.zip",
-          "checksum": "SHA-256:714AD7FD60B55C92E2D7E24ED89F8A042C31765E32C9AD2919D82055C9ED719F",
-          "size": "3103",
+          "checksum": "SHA-256:7B8A93E4EDFA8EF63884A6B152C0DAFF24E067FA4F779A52AE77BFC8F23DCB72",
+          "size": "3135",
           "boards": [
             {"name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"}
           ],
diff --git a/BootLoaders/package_multi_4in1_board_v1.0.0.zip b/BootLoaders/package_multi_4in1_board_v1.0.0.zip
index 5668fdb..bb22be9 100644
Binary files a/BootLoaders/package_multi_4in1_board_v1.0.0.zip and b/BootLoaders/package_multi_4in1_board_v1.0.0.zip differ