diff --git a/CMSIS/STM32H7xx/Include/stm32h743xx.h b/CMSIS/STM32H7xx/Include/stm32h743xx.h
index acb04e8..46c78bf 100644
--- a/CMSIS/STM32H7xx/Include/stm32h743xx.h
+++ b/CMSIS/STM32H7xx/Include/stm32h743xx.h
@@ -2382,7 +2382,7 @@ typedef struct
 #define EXTI                ((EXTI_TypeDef *) EXTI_BASE)
 #define EXTI_D1             ((EXTI_Core_TypeDef *) EXTI_D1_BASE)
 #define EXTI_D2             ((EXTI_Core_TypeDef *) EXTI_D2_BASE)
-#define SDMMC               ((SDMMC_TypeDef *) SDMMC_BASE)
+//#define SDMMC               ((SDMMC_TypeDef *) SDMMC_BASE)
 #define TIM1                ((TIM_TypeDef *) TIM1_BASE)
 #define SPI1                ((SPI_TypeDef *) SPI1_BASE)
 #define TIM8                ((TIM_TypeDef *) TIM8_BASE)
diff --git a/CMSIS/STM32H7xx/Include/stm32h753xx.h b/CMSIS/STM32H7xx/Include/stm32h753xx.h
index 3703714..2cab591 100644
--- a/CMSIS/STM32H7xx/Include/stm32h753xx.h
+++ b/CMSIS/STM32H7xx/Include/stm32h753xx.h
@@ -2455,7 +2455,7 @@ typedef struct
 #define EXTI                ((EXTI_TypeDef *) EXTI_BASE)
 #define EXTI_D1             ((EXTI_Core_TypeDef *) EXTI_D1_BASE)
 #define EXTI_D2             ((EXTI_Core_TypeDef *) EXTI_D2_BASE)
-#define SDMMC               ((SDMMC_TypeDef *) SDMMC_BASE)
+//#define SDMMC               ((SDMMC_TypeDef *) SDMMC_BASE)
 #define TIM1                ((TIM_TypeDef *) TIM1_BASE)
 #define SPI1                ((SPI_TypeDef *) SPI1_BASE)
 #define TIM8                ((TIM_TypeDef *) TIM8_BASE)