diff --git a/sys/geom/mirror/g_mirror.c b/sys/geom/mirror/g_mirror.c
index 253ae01e4e19..125f81b98e6a 100644
--- a/sys/geom/mirror/g_mirror.c
+++ b/sys/geom/mirror/g_mirror.c
@@ -3061,8 +3061,6 @@ g_mirror_reinit_from_metadata(struct g_mirror_softc *sc,
     const struct g_mirror_metadata *md)
 {
 
-	sx_assert(&sc->sc_lock, SX_XLOCKED);
-
 	sc->sc_genid = md->md_genid;
 	sc->sc_syncid = md->md_syncid;