diff --git a/src/common/kernel/eressea.c b/src/common/kernel/eressea.c
index d53fa0c5b..c8fc7f8e8 100644
--- a/src/common/kernel/eressea.c
+++ b/src/common/kernel/eressea.c
@@ -53,8 +53,6 @@
 #include "terrain.h"
 #include "unit.h"
 
-#include <spells/regioncurse.h>
-
 /* util includes */
 #include <util/attrib.h>
 #include <util/base36.h>
@@ -2727,6 +2725,15 @@ int rule_auto_taxation(void)
   return rule_taxation;
 }
 
+int rule_blessed_harvest(void)
+{
+  static int rule = -1;
+  if (rule<0) {
+    rule = get_param_int(global.parameters, "rules.magic.blessed_harvest", HARVEST_WORK);
+  }
+  return rule;
+}
+
 static int
 default_wage(const region *r, const faction * f, const race * rc, int in_turn)
 {
diff --git a/src/common/kernel/eressea.h b/src/common/kernel/eressea.h
index c3cc02c39..618f7bb90 100644
--- a/src/common/kernel/eressea.h
+++ b/src/common/kernel/eressea.h
@@ -255,6 +255,7 @@ int cmp_current_owner(const struct building * b, const struct building * bother)
 int rule_auto_taxation(void);
 int rule_region_owners(void);
 int rule_stealth_faction(void);
+int rule_blessed_harvest(void);
 
 extern int count_all(const struct faction * f);
 extern int count_migrants (const struct faction * f);
diff --git a/src/common/kernel/unit.c b/src/common/kernel/unit.c
index 093037159..133965f82 100644
--- a/src/common/kernel/unit.c
+++ b/src/common/kernel/unit.c
@@ -900,8 +900,12 @@ move_unit(unit * u, region * r, unit ** ulist)
     fset(u, UFL_MOVED);
     if (u->ship || u->building) {
       /* can_leave must be checked in travel_i */
+#ifndef NDEBUG
       boolean result = leave(u, false);
       assert(result);
+#else
+      leave(u, false);
+#endif
     }
     translist(&u->region->units, ulist, u);
   } else {
diff --git a/src/common/spells/regioncurse.c b/src/common/spells/regioncurse.c
index b05d70e90..b02af0181 100644
--- a/src/common/spells/regioncurse.c
+++ b/src/common/spells/regioncurse.c
@@ -203,15 +203,6 @@ static struct curse_type ct_blessedharvest = {
   cinfo_simple
 };
 
-int rule_blessed_harvest(void)
-{
-  static int rule = -1;
-  if (rule<0) {
-    rule = get_param_int(global.parameters, "rules.magic.blessed_harvest", HARVEST_WORK);
-  }
-  return rule;
-}
-
 static struct curse_type ct_drought = {
   "drought",
   CURSETYP_NORM, 0, ( M_DURATION | M_VIGOUR ),
diff --git a/src/common/spells/regioncurse.h b/src/common/spells/regioncurse.h
index 46b32872c..d91f4847b 100644
--- a/src/common/spells/regioncurse.h
+++ b/src/common/spells/regioncurse.h
@@ -24,7 +24,6 @@ extern void register_regioncurse(void);
 
 #define HARVEST_WORK  0x00
 #define HARVEST_TAXES 0x01
-int rule_blessed_harvest(void);
 
 #ifdef __cplusplus
 }