diff --git a/src/runner.c b/src/runner.c
index 104a2cfbaad108dec9f5194bae9bcf5fd4d85dff..214492c32e294052cc541c22436fd9084457a0bc 100644
--- a/src/runner.c
+++ b/src/runner.c
@@ -157,11 +157,11 @@ void runner_do_stars_ghost(struct runner *r, struct cell *c, int timer) {
   if (c->split) {
     for (int k = 0; k < 8; k++)
       if (c->progeny[k] != NULL) {
-	runner_do_stars_ghost(r, c->progeny[k], 0);
+        runner_do_stars_ghost(r, c->progeny[k], 0);
 
-	/* update h_max */
-	if (c->progeny[k]->stars.h_max > h_max)
-	  h_max = c->progeny[k]->stars.h_max;
+        /* update h_max */
+        if (c->progeny[k]->stars.h_max > h_max)
+          h_max = c->progeny[k]->stars.h_max;
       }
   } else {
 
@@ -349,11 +349,10 @@ void runner_do_stars_ghost(struct runner *r, struct cell *c, int timer) {
 
         /* We now have a particle whose smoothing length has converged */
 
-	/* Check if h_max is increased */
-	if (h_max < sp->h)
-	  h_max = sp->h;
+        /* Check if h_max is increased */
+        if (h_max < sp->h) h_max = sp->h;
 
-	stars_reset_feedback(sp);
+        stars_reset_feedback(sp);
 
         /* Compute the stellar evolution  */
         stars_evolve_spart(sp, e->stars_properties, cosmo);
@@ -427,19 +426,16 @@ void runner_do_stars_ghost(struct runner *r, struct cell *c, int timer) {
   }
 
   /* update h_max */
-  if (h_max > c->stars.h_max)
-    c->stars.h_max = h_max;
+  if (h_max > c->stars.h_max) c->stars.h_max = h_max;
 
   /* The ghost may not always be at the top level.
    * Therefore we need to update h_max above the ghost */
   if (c->stars.ghost) {
-    for(struct cell *tmp = c->parent; tmp != NULL; tmp = tmp->parent) {
-      if (h_max > tmp->stars.h_max)
-	tmp->stars.h_max = h_max;
+    for (struct cell *tmp = c->parent; tmp != NULL; tmp = tmp->parent) {
+      if (h_max > tmp->stars.h_max) tmp->stars.h_max = h_max;
     }
   }
 
-  
   if (timer) TIMER_TOC(timer_dostars_ghost);
 }
 
@@ -1477,11 +1473,11 @@ void runner_do_ghost(struct runner *r, struct cell *c, int timer) {
   if (c->split) {
     for (int k = 0; k < 8; k++)
       if (c->progeny[k] != NULL) {
-	runner_do_ghost(r, c->progeny[k], 0);
-	/* update h_max */
-	if (c->progeny[k]->hydro.h_max > h_max) {
-	  h_max = c->progeny[k]->hydro.h_max;
-	}
+        runner_do_ghost(r, c->progeny[k], 0);
+        /* update h_max */
+        if (c->progeny[k]->hydro.h_max > h_max) {
+          h_max = c->progeny[k]->hydro.h_max;
+        }
       }
   } else {
 
@@ -1724,12 +1720,12 @@ void runner_do_ghost(struct runner *r, struct cell *c, int timer) {
           }
         }
 
-          /* We now have a particle whose smoothing length has converged */
+        /* We now have a particle whose smoothing length has converged */
 
-	/* Check if h_max is increased */
-	if (h_max < p->h) {
-	  h_max = p->h;
-	}
+        /* Check if h_max is increased */
+        if (h_max < p->h) {
+          h_max = p->h;
+        }
 
 #ifdef EXTRA_HYDRO_LOOP
 
@@ -1851,9 +1847,8 @@ void runner_do_ghost(struct runner *r, struct cell *c, int timer) {
   /* The ghost may not always be at the top level.
    * Therefore we need to update h_max above the ghost */
   if (c->hydro.ghost) {
-    for(struct cell *tmp = c->parent; tmp != NULL; tmp = tmp->parent) {
-      if (h_max > tmp->hydro.h_max)
-	tmp->hydro.h_max = h_max;
+    for (struct cell *tmp = c->parent; tmp != NULL; tmp = tmp->parent) {
+      if (h_max > tmp->hydro.h_max) tmp->hydro.h_max = h_max;
     }
   }