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-rw-r--r--ports/stm32/mphalport.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ports/stm32/mphalport.c b/ports/stm32/mphalport.c
index c5786e740..fe7772cf6 100644
--- a/ports/stm32/mphalport.c
+++ b/ports/stm32/mphalport.c
@@ -121,7 +121,7 @@ void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio) {
#define AHBxENR_GPIOAEN_Pos RCC_AHB4ENR_GPIOAEN_Pos
#elif defined(STM32L0)
#define AHBxENR IOPENR
- #define AHBxENR_GPIOAEN_Pos RCC_IOPENR_GPIOAEN
+ #define AHBxENR_GPIOAEN_Pos RCC_IOPENR_IOPAEN_Pos
#elif defined(STM32L4)
#define AHBxENR AHB2ENR
#define AHBxENR_GPIOAEN_Pos RCC_AHB2ENR_GPIOAEN_Pos