diff --git a/led.c b/led.c
index 9826340..99e4526 100644
--- a/led.c
+++ b/led.c
@@ -5,15 +5,15 @@
 
 int main (void)
 {
- /* set pin 5 of PORTB for output*/
+ /* set pin 4 of PORTB for output*/
  DDRB |= _BV(DDB4);
  
  while(1) {
-  /* set pin 5 high to turn led on */
+  /* set pin 4 high to turn led on */
   PORTB |= _BV(PORTB4);
   _delay_ms(BLINK_DELAY_MS);
  
-  /* set pin 5 low to turn led off */
+  /* set pin 4 low to turn led off */
   PORTB &= ~_BV(PORTB4);
   _delay_ms(BLINK_DELAY_MS);
  }