From c4a9352bbb98f921a1ab046326823c76e38e8511 Mon Sep 17 00:00:00 2001
From: Matthieu Schaller <matthieu.schaller@durham.ac.uk>
Date: Mon, 6 May 2019 09:47:26 +0100
Subject: [PATCH] When lisiting 'useful' top-level cells also check whether
 they have a black hole.

---
 src/space.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/space.c b/src/space.c
index 651f4c044e..87673e104d 100644
--- a/src/space.c
+++ b/src/space.c
@@ -3903,6 +3903,7 @@ void space_list_useful_top_level_cells(struct space *s) {
 
     const int has_particles =
         (c->hydro.count > 0) || (c->grav.count > 0) || (c->stars.count > 0) ||
+        (c->black_holes.count > 0) ||
         (c->grav.multipole != NULL && c->grav.multipole->m_pole.M_000 > 0.f);
 
     if (has_particles) {
-- 
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