diff --git a/ports/stm32/machine_i2c.c b/ports/stm32/machine_i2c.c
index 0976c18c81..262944585a 100644
--- a/ports/stm32/machine_i2c.c
+++ b/ports/stm32/machine_i2c.c
@@ -186,7 +186,7 @@ STATIC void machine_hard_i2c_init(machine_hard_i2c_obj_t *self, uint32_t freq, u
 /******************************************************************************/
 /* MicroPython bindings for machine API                                       */
 
-#if defined(STM32F0) || defined(STM32F7)
+#if defined(STM32F0) || defined(STM32F7) || defined(STM32H7)
 #define MACHINE_I2C_TIMINGR (1)
 #else
 #define MACHINE_I2C_TIMINGR (0)