diff --git a/src/common/kernel/eressea.c b/src/common/kernel/eressea.c
index fc8460b55..ccf7f6b42 100644
--- a/src/common/kernel/eressea.c
+++ b/src/common/kernel/eressea.c
@@ -2551,7 +2551,7 @@ remove_empty_units_in_region(region *r)
       }
     }
     if ((u->number == 0 && u->race != new_race[RC_SPELL]) || (u->age <= 0 && u->race == new_race[RC_SPELL])) {
-      if (F!=NULL) destroy_unit(u);
+      if (u->faction!=NULL) destroy_unit(u);
       if (u->number==0) remove_unit(u);
     }
     if (*up==u) up=&u->next;