diff --git a/firmware/config/boards/hellen/alphax-8chan/board.mk b/firmware/config/boards/hellen/alphax-8chan/board.mk
index 1620cc3eb5..9962bd5094 100644
--- a/firmware/config/boards/hellen/alphax-8chan/board.mk
+++ b/firmware/config/boards/hellen/alphax-8chan/board.mk
@@ -10,6 +10,7 @@ DDEFS += -DEFI_SOFTWARE_KNOCK=TRUE -DSTM32_ADC_USE_ADC3=TRUE
 # MM176_GP9
 DDEFS += -DADC_MUX_PIN=Gpio::F2
 
+DDEFS += -DSTM32_ICU_USE_TIM1=TRUE -DSTM32_PWM_USE_TIM1=FALSE
 DDEFS += -DEFI_SENT_SUPPORT=TRUE
 
 LED_CRITICAL_ERROR_BRAIN_PIN = -DLED_CRITICAL_ERROR_BRAIN_PIN=H176_MCU_MEGA_LED1_RED