diff --git a/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h b/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h
index 9a9b499b27..b1ab7e0d92 100644
--- a/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h
+++ b/arch/arm/src/stm32h7/hardware/stm32h7x3xx_memorymap.h
@@ -116,6 +116,7 @@
 #define STM32_MDIOS_BASE       0x40009400     /* 0x40009400 - 0x400097ff MDIOS Section */
 #define STM32_FDCAN1_BASE      0x4000a000     /* 0x4000a000 - 0x4000a3ff FDCAN1 Section */
 #define STM32_FDCAN2_BASE      0x4000a400     /* 0x4000a400 - 0x4000A7ff FDCAN2 Section */
+#define STM32_FDCAN3_BASE      0x4000D400     /* 0x4000D400 - 0x4000D7FF FDCAN3 Section */
 #define STM32_CANCCU_BASE      0x4000a800     /* 0x4000a800 - 0x4000abff CAN CCU Section */
 #define STM32_CANRAM_BASE      0x4000ac00     /* 0x4000ac00 - 0x4000d3ff CAN Message RAM */