diff --git a/drivers/audio/Kconfig b/drivers/audio/Kconfig
index 039b8a0ddf..6ce5b9f726 100644
--- a/drivers/audio/Kconfig
+++ b/drivers/audio/Kconfig
@@ -147,7 +147,7 @@ config AUDIO_NULL_MSG_PRIO
 	int "Null audio device message priority"
 	default 1
 
-config UDIO_NULL_BUFFER_SIZE
+config AUDIO_NULL_BUFFER_SIZE
 	int "Null audio device preferred buffer size"
 	default 8192