diff --git a/external/cddl/osnet/dist/tools/ctf/cvt/ctf.c b/external/cddl/osnet/dist/tools/ctf/cvt/ctf.c
index d5365870fc2d..37d5d140ed6c 100644
--- a/external/cddl/osnet/dist/tools/ctf/cvt/ctf.c
+++ b/external/cddl/osnet/dist/tools/ctf/cvt/ctf.c
@@ -173,12 +173,12 @@ write_objects(iidesc_t *idp, ctf_buf_t *b)
 {
 	ushort_t id = (idp ? idp->ii_dtype->t_id : 0);
 
-	ctf_buf_write(b, &id, sizeof (id));
-
 	if (target_requires_swap) {
 		SWAP_16(id);
 	}
 
+	ctf_buf_write(b, &id, sizeof (id));
+
 	debug(3, "Wrote object %s (%d)\n", (idp ? idp->ii_name : "(null)"), id);
 }