diff --git a/firmware/config/boards/microrusefi/board.mk b/firmware/config/boards/microrusefi/board.mk
index b8b1dcdf9a..e3aaafbe9a 100644
--- a/firmware/config/boards/microrusefi/board.mk
+++ b/firmware/config/boards/microrusefi/board.mk
@@ -26,6 +26,8 @@ endif
 # *TODO* need to give people the horrible choice between Bluetooth via TTL or SD card via SPI :( horrible choice 
 EFI_CONSOLE_TTL_PINS = -DEFI_CONSOLE_TX_BRAIN_PIN=GPIOB_10 -DEFI_CONSOLE_RX_BRAIN_PIN=GPIOB_11
 
+DDEFS += -DEFI_CAN_SERIAL=TRUE -DTS_CAN_DEVICE_SHORT_PACKETS_IN_ONE_FRAME=TRUE
+
 
 # Add them all together
 DDEFS += -DEFI_USE_OSC=TRUE -DFIRMWARE_ID=\"microRusEFI\" $(DEFAULT_ENGINE_TYPE) $(LED_CRITICAL_ERROR_BRAIN_PIN) $(EFI_CONSOLE_TTL_PINS) -DEFI_SOFTWARE_KNOCK=TRUE -DSTM32_ADC_USE_ADC3=TRUE