diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 654e28a6669f..49e12cf7c0e3 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -181,7 +181,7 @@ struct snd_efw_phys_meters {
 } __packed;
 enum snd_efw_clock_source {
 	SND_EFW_CLOCK_SOURCE_INTERNAL	= 0,
-	SND_EFW_CLOCK_SOURCE_SYTMATCH	= 1,
+	// Unused.
 	SND_EFW_CLOCK_SOURCE_WORDCLOCK	= 2,
 	SND_EFW_CLOCK_SOURCE_SPDIF	= 3,
 	SND_EFW_CLOCK_SOURCE_ADAT_1	= 4,