diff --git a/src/cell.h b/src/cell.h
index dfe0261f628799980111f4bedb8fcfdad90ef043..ae22de0cb268bb5240c480b2eed9435ec218adf8 100644
--- a/src/cell.h
+++ b/src/cell.h
@@ -5,7 +5,6 @@
  *               2015 Peter W. Draper (p.w.draper@durham.ac.uk)
  *               2016 John A. Regan (john.a.regan@durham.ac.uk)
  *                    Tom Theuns (tom.theuns@durham.ac.uk)
- *                    Stefan Arridge (stefan.arridge@durham.ac.uk)
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published
diff --git a/src/space.c b/src/space.c
index a907f880cd13cb7a4dfacacd029589f61e406009..86c8cc36eacd58c89181831b3c5472026281043c 100644
--- a/src/space.c
+++ b/src/space.c
@@ -1814,11 +1814,8 @@ void space_init(struct space *s, const struct swift_params *params,
     } else {
       for (size_t k = 0; k < Npart; k++)
         for (int j = 0; j < 3; j++)
-          if (parts[k].x[j] < 0 || parts[k].x[j] >= dim[j]) {
-            printf("parts[%lld].x[%d] = %f , dim[%d] = %f\n", k, j,
-                   parts[k].x[j], j, dim[j]);
+          if (parts[k].x[j] < 0 || parts[k].x[j] >= dim[j])
             error("Not all particles are within the specified domain.");
-          }
     }
 
     /* Same for the gparts */
diff --git a/src/task.c b/src/task.c
index 277739c2b60b3b6600cf360cb8a565e93b98bdd4..54b9363b7ac3d5c372b591c00b0b03cc274f66b5 100644
--- a/src/task.c
+++ b/src/task.c
@@ -39,6 +39,7 @@
 
 /* This object's header. */
 #include "task.h"
+
 /* Local headers. */
 #include "atomic.h"
 #include "error.h"
diff --git a/src/task.h b/src/task.h
index 3861f89ea4ba3a903f78d08d27c42b0cd2b11d1b..f840c0b4b8e807dce28f6f13479dbdf4995ab66d 100644
--- a/src/task.h
+++ b/src/task.h
@@ -53,7 +53,6 @@ enum task_types {
   task_type_grav_fft,
   task_type_grav_mm,
   task_type_grav_up,
-  task_type_grav_external,
   task_type_cooling,
   task_type_sourceterms,
   task_type_count
diff --git a/src/units.c b/src/units.c
index c6262ced329528eb99538bfb8d99e2da189f78a6..2241d441ec9af9b6d5083191e8f61010ebaccb20 100644
--- a/src/units.c
+++ b/src/units.c
@@ -320,6 +320,9 @@ void units_get_base_unit_exponants_array(float baseUnitsExp[5],
 
     case UNIT_CONV_VOLUME:
       baseUnitsExp[UNIT_LENGTH] = 3.f;
+
+    case UNIT_CONV_INV_VOLUME:
+      baseUnitsExp[UNIT_LENGTH] = -3.f;
   }
 }
 
diff --git a/src/units.h b/src/units.h
index 8761f12d6976125537545e14ad12e88db0f36a6f..78fdf1c23c3c276607d5353ee3437d8eb1e96537 100644
--- a/src/units.h
+++ b/src/units.h
@@ -59,7 +59,6 @@ enum BaseUnits {
   UNIT_LENGTH = 1,
   UNIT_TIME = 2,
   UNIT_CURRENT = 3,
-
   UNIT_TEMPERATURE = 4
 };