diff --git a/main.c b/main.c
index 3e770ce..820f518 100644
--- a/main.c
+++ b/main.c
@@ -222,6 +222,7 @@ void main(void)
 		if (rw_button_pressed) {
 			wait_10us(100); // wait 1 ms for the noise to be gone
 			if (0 == (RW_BUTTON_PORT->IDR.reg & RW_BUTTON_PIN)) { // ensure the button is pressed (the pull-up is really weak)
+				run_led_off(); // clear RUN LED to see result at the end
 				wait_10us(10000); // debounce for 100 ms
 				uint8_t press_duration = 1; // start counting how long the button is pressed
 				while (0 == (RW_BUTTON_PORT->IDR.reg & RW_BUTTON_PIN)) { // wait until button is depressed