diff --git a/source/blender/editors/sculpt_paint/sculpt.c b/source/blender/editors/sculpt_paint/sculpt.c
index e2289bc9cfc..210477e3e5a 100644
--- a/source/blender/editors/sculpt_paint/sculpt.c
+++ b/source/blender/editors/sculpt_paint/sculpt.c
@@ -3074,12 +3074,12 @@ void sculpt_update_mesh_elements(Scene *scene, Sculpt *sd, Object *ob, int need_
 	/* BMESH ONLY --- at some point we should move sculpt code to use polygons only - but for now it needs tessfaces */
 	BKE_mesh_tessface_ensure(me);
 
-	/* needs to be called after we ensure tessface */
-	dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
-
 	if (!mmd) ss->kb = ob_get_keyblock(ob);
 	else ss->kb = NULL;
 
+	/* needs to be called after we ensure tessface */
+	dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
+
 	if (mmd) {
 		ss->multires = mmd;
 		ss->totvert = dm->getNumVerts(dm);