diff --git a/yasnd.c b/yasnd.c
index f63cc83..d040c9e 100644
--- a/yasnd.c
+++ b/yasnd.c
@@ -205,7 +205,7 @@ void reset_pin(int pin_num)
 		log_event("Error: incorrent LPT pin number");
 		return;
 	}
-	int pins = 2<<(pin_num-1);
+	int pins = 1<<(pin_num);
 	if (ioperm (lpt_port, 3, 1))
 	{
 		log_event("Error: LPT port access error");