diff --git a/sys/cddl/dev/sdt/sdt.c b/sys/cddl/dev/sdt/sdt.c
index 0a905910467..97ef2de1852 100644
--- a/sys/cddl/dev/sdt/sdt.c
+++ b/sys/cddl/dev/sdt/sdt.c
@@ -60,6 +60,9 @@
 
 #include <cddl/dev/dtrace/dtrace_cddl.h>
 
+_Static_assert(sizeof((struct sdt_probe *)NULL)->id == sizeof(dtrace_id_t),
+    "sdt_probe.id and dtrace_id_t size mismatch");
+
 /* DTrace methods. */
 static void	sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
 static uint64_t	sdt_getargval(void *, dtrace_id_t, void *, int, int);
diff --git a/sys/sys/param.h b/sys/sys/param.h
index 3b56c582be0..d228859575c 100644
--- a/sys/sys/param.h
+++ b/sys/sys/param.h
@@ -74,7 +74,7 @@
  * cannot include sys/param.h and should only be updated here.
  */
 #undef __FreeBSD_version
-#define __FreeBSD_version 1600007
+#define __FreeBSD_version 1600008
 
 /*
  * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,
diff --git a/sys/sys/sdt.h b/sys/sys/sdt.h
index cd45bc1a1ff..f705be91568 100644
--- a/sys/sys/sdt.h
+++ b/sys/sys/sdt.h
@@ -447,7 +447,7 @@ struct sdt_probe {
 	const char	*mod;
 	const char	*func;
 	const char	*name;
-	id_t		id;		/* DTrace probe ID. */
+	uint32_t	id;		/* DTrace probe ID. */
 	int		n_args;		/* Number of arguments. */
 	struct linker_file *sdtp_lf;	/* Module in which we're defined. */
 };