diff --git a/boards/arm/stm32h7/nucleo-h743zi2/include/board.h b/boards/arm/stm32h7/nucleo-h743zi2/include/board.h
index abaff6f4df..b8495b50a0 100644
--- a/boards/arm/stm32h7/nucleo-h743zi2/include/board.h
+++ b/boards/arm/stm32h7/nucleo-h743zi2/include/board.h
@@ -392,7 +392,7 @@
 
 /* TIM3 */
 
-#define GPIO_TIM3_CH1OUT  GPIO_TIM3_CH1OUT_2    /* PB4  */
+#define GPIO_TIM3_CH1OUT  GPIO_TIM3_CH1OUT_2   /* PB4  */
 #define GPIO_TIM3_CH2OUT  GPIO_TIM3_CH2OUT_2   /* PB5  */
 
 #define GPIO_TIM3_CH1IN GPIO_TIM3_CH1IN_2      /* PA4 */