diff --git a/source/blender/editors/object/object_edit.cc b/source/blender/editors/object/object_edit.cc
index 20f80b0618b..12b138bf505 100644
--- a/source/blender/editors/object/object_edit.cc
+++ b/source/blender/editors/object/object_edit.cc
@@ -1612,6 +1612,7 @@ static int shade_smooth_exec(bContext *C, wmOperator *op)
         const float angle = RNA_float_get(op->ptr, "angle");
         bke::mesh_sharp_edges_set_from_angle(mesh, angle, keep_sharp_edges);
       }
+      mesh.tag_sharpness_changed();
       BKE_mesh_batch_cache_dirty_tag(static_cast<Mesh *>(ob->data), BKE_MESH_BATCH_DIRTY_ALL);
       changed = true;
     }