diff --git a/example/blink.c b/example/blink.c
index 9c8529cd..7c7da78a 100644
--- a/example/blink.c
+++ b/example/blink.c
@@ -24,7 +24,7 @@ int main(void)
 	int i;
 
 	/* Enable GPIOC clock. */
-	RCC_APB2ENR = RCC_IOPCEN;
+	RCC_APB2ENR = IOPCEN;
 
 	/* Set GPIO12 (in GPIO port C) to 'output push-pull'. */
 	/* Manually: */