diff --git a/drivers/audio/audio_null.c b/drivers/audio/audio_null.c
index 47750fafcc..d153e34e63 100644
--- a/drivers/audio/audio_null.c
+++ b/drivers/audio/audio_null.c
@@ -769,7 +769,7 @@ static int null_ioctl(FAR struct audio_lowerhalf_s *dev, int cmd,
   FAR struct ap_buffer_info_s *bufinfo;
 #endif
 
-  audinfo("cmd=%d arg=%ld\n");
+  audinfo("cmd=%d arg=%ld\n", cmd, arg);
 
   /* Deal with ioctls passed from the upper-half driver */