diff --git a/arch/arm/src/stm32g0/hardware/stm32g0_flash.h b/arch/arm/src/stm32g0/hardware/stm32g0_flash.h
index 779011abd83..f07a8a721f1 100644
--- a/arch/arm/src/stm32g0/hardware/stm32g0_flash.h
+++ b/arch/arm/src/stm32g0/hardware/stm32g0_flash.h
@@ -69,7 +69,7 @@
 #define STM32_FLASH_ECCR             (STM32_FLASHIF_BASE+STM32_FLASH_ECCR_OFFSET)
 #define STM32_FLASH_OPTR             (STM32_FLASHIF_BASE+STM32_FLASH_OPTR_OFFSET)
 #define STM32_FLASH_PCROP1ASE        (STM32_FLASHIF_BASE+STM32_FLASH_PCROP1ASE_OFFSET)
-#define STM32_FLASH_PCROP1AER        (STM32_FLASHIF_BAER+STM32_FLASH_PCROP1AER_OFFSET)
+#define STM32_FLASH_PCROP1AER        (STM32_FLASHIF_BASE+STM32_FLASH_PCROP1AER_OFFSET)
 #define STM32_FLASH_WPR1AR           (STM32_FLASHIF_BASE+STM32_FLASH_WPR1AR_OFFSET)
 #define STM32_FLASH_WPR1BR           (STM32_FLASHIF_BASE+STM32_FLASH_WPR1BR_OFFSET)
 #define STM32_FLASH_PCROP1BSR        (STM32_FLASHIF_BASE+STM32_FLASH_WPR1BSR_OFFSET)