diff --git a/src/common/gamecode/report.c b/src/common/gamecode/report.c
index 7ace358ae..310986530 100644
--- a/src/common/gamecode/report.c
+++ b/src/common/gamecode/report.c
@@ -2913,6 +2913,8 @@ reports(void)
 
 	report_donations();
 	remove_empty_units();
+  log_printf("Updating region intervals\n");
+  update_intervals();
 	log_printf("Report timestamp - %s\n", pzTime);
 	for (f = factions; f; f = f->next) {
 		faction_list * addresses;
diff --git a/src/common/kernel/eressea.c b/src/common/kernel/eressea.c
index 3ae6abf61..84ac3e9cf 100644
--- a/src/common/kernel/eressea.c
+++ b/src/common/kernel/eressea.c
@@ -1947,20 +1947,24 @@ update_intervals(void)
     for (u = r->units; u; u = u->next) {
       faction * f = u->faction;
       if (f->first==NULL) f->first = r;
+      f->last = r->next;
     }
 
     for (ru = a_find(r->attribs, &at_travelunit); ru; ru = ru->nexttype) {
       faction * f = ((unit*)ru->data.v)->faction;
       if (f->first==NULL) f->first = r;
+      f->last = r->next;
     }
 
     ulist = get_lighthouses(r);
     for (uptr=ulist;uptr!=NULL;uptr=uptr->next) {
       /* check lighthouse warden's faction */
       unit * u = uptr->data;
-      if (u->faction->first==NULL) {
-        u->faction->first = r;
+      faction * f = u->faction;
+      if (f->first==NULL) {
+        f->first = r;
       }
+      f->last = r->next;
     }
     unitlist_clear(&ulist);
 
@@ -1969,6 +1973,7 @@ update_intervals(void)
       while (w) {
         faction * f = w->faction;
         if (f->first==NULL) f->first = r;
+        f->last = r->next;
         w = w->next;
       }
     }
diff --git a/src/common/kernel/eressea.h b/src/common/kernel/eressea.h
index b7dfb01b5..e9660f862 100644
--- a/src/common/kernel/eressea.h
+++ b/src/common/kernel/eressea.h
@@ -1053,8 +1053,10 @@ int change_hitpoints(struct unit *u, int value);
 int weight(const struct unit * u);
 void changeblockchaos(void);
 
-struct region *firstregion(struct faction * f);
-struct region *lastregion(struct faction * f);
+/* intervall, in dem die regionen der partei zu finden sind */
+extern void update_intervals(void);
+extern struct region *firstregion(struct faction * f);
+extern struct region *lastregion(struct faction * f);
 
 void inituhash(void);
 void uhash(struct unit * u);