diff --git a/drivers/input/input.c b/drivers/input/input.c
index 591c70d..3038c26 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -155,6 +155,9 @@
 			if (code > SND_MAX || !test_bit(code, dev->sndbit))
 				return;
 
+			if (!!test_bit(code, dev->snd) != !!value)
+				change_bit(code, dev->snd);
+
 			if (dev->event) dev->event(dev, type, code, value);
 
 			break;