diff --git a/src/reports.test.c b/src/reports.test.c
index d5801ebab..91e052683 100644
--- a/src/reports.test.c
+++ b/src/reports.test.c
@@ -6,6 +6,7 @@
 #include "lighthouse.h"
 #include "travelthru.h"
 #include "keyword.h"
+#include "spells.h"
 
 #include <kernel/building.h>
 #include <kernel/faction.h>
@@ -426,7 +427,7 @@ static void test_seen_travelthru(CuTest *tc) {
 }
 
 static void test_report_far_vision(CuTest *tc) {
-    unit *u1, *u2;
+    unit *u1;
     faction *f;
     region *r1, *r2;
     const race *rc;
@@ -436,8 +437,9 @@ static void test_report_far_vision(CuTest *tc) {
     u1 = test_create_unit(f, r1);
     r2 = test_create_region(10, 0, 0);
     rc = test_create_race("spell");
-    u2 = create_unit(r2, u1->faction, 1, rc, 0, "spell/dreamreading", NULL);
-    set_number(u2, 1);
+    watch_region(r2, f, 10);
+    CuAssertPtrEquals(tc, r1, f->first);
+    CuAssertPtrEquals(tc, r2, f->last);
     report_context ctx;
     prepare_report(&ctx, f);
     CuAssertPtrEquals(tc, r1, ctx.first);
diff --git a/src/spells.c b/src/spells.c
index ce0a8d980..b14b588ee 100644
--- a/src/spells.c
+++ b/src/spells.c
@@ -4111,7 +4111,8 @@ static int sp_bigrecruit(castorder * co)
     return cast_level;
 }
 
-static void watch_region(region *r, faction *f, int perception) {
+void watch_region(region *r, faction *f, int perception)
+{
     unit *u;
 
     u = create_unit(r, f, 1, get_race(RC_SPELL), 0, NULL, NULL);
diff --git a/src/spells.h b/src/spells.h
index 1ad68e131..c10ee1c6c 100644
--- a/src/spells.h
+++ b/src/spells.h
@@ -25,10 +25,14 @@ extern "C" {
     struct ship;
     struct curse;
     struct unit;
+    struct faction;
+    struct region;
     struct message;
 
     void register_spells(void);
 
+    void watch_region(struct region *r, struct faction *f, int perception);
+
     int sp_baddreams(castorder * co);
     int sp_gooddreams(castorder * co);