diff --git a/source/blender/editors/sculpt_paint/sculpt.c b/source/blender/editors/sculpt_paint/sculpt.c
index d68b1226b40..2fdf04a8b46 100644
--- a/source/blender/editors/sculpt_paint/sculpt.c
+++ b/source/blender/editors/sculpt_paint/sculpt.c
@@ -7125,6 +7125,7 @@ bool SCULPT_cursor_geometry_info_update(bContext *C,
 
   /* Update the active vertex of the SculptSession. */
   ss->active_vertex_index = srd.active_vertex_index;
+  SCULPT_vertex_random_access_ensure(ss);
   copy_v3_v3(out->active_vertex_co, SCULPT_active_vertex_co_get(ss));
 
   switch (BKE_pbvh_type(ss->pbvh)) {