diff --git a/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h b/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h
index 54d502c1d2f..ef728020408 100644
--- a/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h
+++ b/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h
@@ -235,9 +235,9 @@
 
 /* The DBGMCU registers are accessible to the debugger via the APB-D bus
  * at base address 0xe00e1000. They are also accessible by the processor 
- * core at base address 0x5e001000. 
+ * core at base address 0x5c001000. 
  */
 
-#define STM32_DEBUGMCU_BASE    0x5e001000
+#define STM32_DEBUGMCU_BASE    0x5c001000
 
 #endif /* __ARCH_ARM_SRC_STM32H7_HARDWARE_STM32H7X3XX_MEMORYMAP_H */