diff --git a/boards/arm/stm32h7/nucleo-h743zi2/src/stm32_pwm.c b/boards/arm/stm32h7/nucleo-h743zi2/src/stm32_pwm.c
index 44aeaa543b..cdf647357c 100644
--- a/boards/arm/stm32h7/nucleo-h743zi2/src/stm32_pwm.c
+++ b/boards/arm/stm32h7/nucleo-h743zi2/src/stm32_pwm.c
@@ -40,8 +40,6 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-#define OK 0
-
 /* Configuration ************************************************************/
 
 #define HAVE_PWM 1