diff --git a/src/common/kernel/building.c b/src/common/kernel/building.c
index 9f32d2a56..84a1638ad 100644
--- a/src/common/kernel/building.c
+++ b/src/common/kernel/building.c
@@ -40,6 +40,51 @@
 /* attributes includes */
 #include <attributes/matmod.h>
 
+static void 
+lc_init(struct attrib *a)
+{
+  a->data.v = calloc(1, sizeof(building_action));
+}
+
+static void 
+lc_done(struct attrib *a)
+{
+  building_action * data = (building_action*)a->data.v;
+  if (data->fname) free(data->fname);
+  free(data);
+}
+
+static void 
+lc_write(const struct attrib * a, FILE* F)
+{
+  building_action * data = (building_action*)a->data.v;
+  const char * fname = data->fname;
+  building * b = data->b;
+
+  write_building_reference(b, F);
+  fwritestr(F, fname);
+  fputc(' ', F);
+}
+
+static int
+lc_read(struct attrib * a, FILE* F)
+{
+  char lbuf[256];
+  building_action * data = (building_action*)a->data.v;
+
+  read_building_reference(&data->b, F);
+  freadstr(F, lbuf, sizeof(lbuf));
+  data->fname = strdup(lbuf);
+  return AT_READ_OK;
+}
+
+attrib_type at_building_action = {
+  "lcbuilding", 
+  lc_init, lc_done, 
+  NULL, 
+  lc_write, lc_read
+};
+
 attrib_type at_nodestroy = {
 	"nodestroy",
 	NULL, NULL, NULL,
diff --git a/src/common/kernel/building.h b/src/common/kernel/building.h
index caf78f6fe..08e70de1f 100644
--- a/src/common/kernel/building.h
+++ b/src/common/kernel/building.h
@@ -140,6 +140,12 @@ extern struct building *findbuilding(int n);
 extern struct unit * buildingowner(const struct region * r, const struct building * b);
 
 extern attrib_type at_nodestroy;
+extern attrib_type at_building_action;
+
+typedef struct building_action {
+  building * b;
+  char * fname;
+} building_action;
 
 #ifdef __cplusplus
 }
diff --git a/src/common/kernel/eressea.c b/src/common/kernel/eressea.c
index b2a86efb2..048aba2db 100644
--- a/src/common/kernel/eressea.c
+++ b/src/common/kernel/eressea.c
@@ -3230,6 +3230,7 @@ attrib_init(void)
 #endif
   at_register(&at_speedup);
   at_register(&at_nodestroy);
+  at_register(&at_building_action);
 }
 
 void
diff --git a/src/eressea/lua/building.cpp b/src/eressea/lua/building.cpp
index 2e0590ca2..2eef239ee 100644
--- a/src/eressea/lua/building.cpp
+++ b/src/eressea/lua/building.cpp
@@ -26,30 +26,11 @@ add_building(region * r, const char * name)
   return new_building(btype, r, NULL);
 }
 
-typedef struct lcbuilding_data {
-  building * b;
-  char * fname;
-} lcbuilding_data;
-
-static void 
-lc_init(struct attrib *a)
-{
-  a->data.v = calloc(1, sizeof(lcbuilding_data));
-}
-
-static void 
-lc_done(struct attrib *a)
-{
-  lcbuilding_data * data = (lcbuilding_data*)a->data.v;
-  if (data->fname) free(data->fname);
-  free(data);
-}
-
 static int
 lc_age(struct attrib * a)
 {
   lua_State * L = (lua_State *)global.vm_state;
-  lcbuilding_data * data = (lcbuilding_data*)a->data.v;
+  building_action * data = (building_action*)a->data.v;
   const char * fname = data->fname;
   building * b = data->b;
 
@@ -58,49 +39,15 @@ lc_age(struct attrib * a)
 
   luabind::object globals = luabind::get_globals(L);
   if (globals.at(fname).type()!=LUA_TFUNCTION) return -1;
-  
+
   return luabind::call_function<int>(L, fname, *b);
 }
 
-static void 
-lc_write(const struct attrib * a, FILE* F)
-{
-  lcbuilding_data * data = (lcbuilding_data*)a->data.v;
-  const char * fname = data->fname;
-  building * b = data->b;
-
-  write_building_reference(b, F);
-  fwritestr(F, fname);
-  fputc(' ', F);
-}
-
-static int
-lc_read(struct attrib * a, FILE* F)
-{
-  char lbuf[256];
-  lcbuilding_data * data = (lcbuilding_data*)a->data.v;
-
-  read_building_reference(&data->b, F);
-  freadstr(F, lbuf, sizeof(lbuf));
-  data->fname = strdup(lbuf);
-  return AT_READ_OK;
-}
-
-attrib_type at_luacall_building = {
-  "lcbuilding", 
-  lc_init, 
-  lc_done, 
-  lc_age, 
-  lc_write, 
-  lc_read,
-  ATF_UNIQUE
-};
-
 static int
 building_addaction(building& b, const char * fname)
 {
-  attrib * a = a_add(&b.attribs, a_new(&at_luacall_building));
-  lcbuilding_data * data = (lcbuilding_data*)a->data.v;
+  attrib * a = a_add(&b.attribs, a_new(&at_building_action));
+  building_action * data = (building_action*)a->data.v;
   data->b = &b;
   data->fname = strdup(fname);
 
@@ -172,7 +119,7 @@ building_units(const building& b) {
 void
 bind_building(lua_State * L) 
 {
-  at_register(&at_luacall_building);
+  at_building_action.age = lc_age;
   module(L)[
     def("get_building", &findbuilding),
     def("add_building", &add_building),