diff --git a/soc/arm/st_stm32/stm32g0/dts_fixup.h b/soc/arm/st_stm32/stm32g0/dts_fixup.h
index ffc3dd9fb29..5a14004bcc0 100644
--- a/soc/arm/st_stm32/stm32g0/dts_fixup.h
+++ b/soc/arm/st_stm32/stm32g0/dts_fixup.h
@@ -86,6 +86,7 @@
 #define DT_USART_1_IRQ				DT_ST_STM32_USART_40013800_IRQ_0
 #define DT_UART_STM32_USART_1_CLOCK_BITS	DT_ST_STM32_USART_40013800_CLOCK_BITS
 #define DT_UART_STM32_USART_1_CLOCK_BUS		DT_ST_STM32_USART_40013800_CLOCK_BUS
+#define DT_UART_STM32_USART_1_HW_FLOW_CONTROL	DT_ST_STM32_USART_40013800_HW_FLOW_CONTROL
 
 #define DT_UART_STM32_USART_2_BASE_ADDRESS	DT_ST_STM32_USART_40004400_BASE_ADDRESS
 #define DT_UART_STM32_USART_2_BAUD_RATE		DT_ST_STM32_USART_40004400_CURRENT_SPEED