diff --git a/chip/stm32/gpio-stm32f100.c b/chip/stm32/gpio-stm32f100.c
index 2dad777f80..c28a7cc917 100644
--- a/chip/stm32/gpio-stm32f100.c
+++ b/chip/stm32/gpio-stm32f100.c
@@ -123,6 +123,7 @@ int gpio_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, gpio_init, HOOK_PRIO_DEFAULT);
 
 
 void gpio_set_alternate_function(int port, int mask, int func)