diff --git a/sys/kern/subr_devstat.c b/sys/kern/subr_devstat.c
index 20e6e025d13..c44ef27edd0 100644
--- a/sys/kern/subr_devstat.c
+++ b/sys/kern/subr_devstat.c
@@ -87,8 +87,12 @@ uint32_t	dtio_wait_done_id;
 
 #define DTRACE_DEVSTAT_START()
 
+#define DTRACE_DEVSTAT_BIO_START()
+
 #define DTRACE_DEVSTAT_DONE()
 
+#define DTRACE_DEVSTAT_BIO_DONE()
+
 #define DTRACE_DEVSTAT_WAIT_START()
 
 #define DTRACE_DEVSTAT_WAIT_DONE()