diff --git a/lapi.c b/lapi.c
index 80144154..c078160a 100644
--- a/lapi.c
+++ b/lapi.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 1.247 2003/10/10 13:29:08 roberto Exp roberto $
+** $Id: lapi.c,v 1.248 2003/10/20 12:25:23 roberto Exp roberto $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -784,7 +784,7 @@ LUA_API int lua_dump (lua_State *L, lua_Chunkwriter writer, void *data) {
   lua_lock(L);
   api_checknelems(L, 1);
   o = L->top - 1;
-  if (isLfunction(o) && clvalue(o)->l.nupvalues == 0)
+  if (isLfunction(o))
     status = luaU_dump(L, clvalue(o)->l.p, writer, data, 0);
   else
     status = 0;
diff --git a/ldo.c b/ldo.c
index 48264ce3..37cf58a8 100644
--- a/ldo.c
+++ b/ldo.c
@@ -1,5 +1,5 @@
 /*
-** $Id: ldo.c,v 1.226 2003/10/03 16:04:11 roberto Exp roberto $
+** $Id: ldo.c,v 1.227 2003/10/20 12:24:26 roberto Exp roberto $
 ** Stack and Call structure of Lua
 ** See Copyright Notice in lua.h
 */
@@ -445,6 +445,7 @@ struct SParser {  /* data to `f_parser' */
 };
 
 static void f_parser (lua_State *L, void *ud) {
+  int i;
   Proto *tf;
   Closure *cl;
   struct SParser *p = cast(struct SParser *, ud);
@@ -452,8 +453,10 @@ static void f_parser (lua_State *L, void *ud) {
   luaC_checkGC(L);
   tf = ((c == LUA_SIGNATURE[0]) ? luaU_undump : luaY_parser)(L, p->z,
                                                              &p->buff, p->name);
-  cl = luaF_newLclosure(L, 0, gt(L));
+  cl = luaF_newLclosure(L, tf->nups, gt(L));
   cl->l.p = tf;
+  for (i = 0; i < tf->nups; i++)  /* initialize eventual upvalues */
+    cl->l.upvals[i] = luaF_newupval(L);
   setclvalue(L->top, cl);
   incr_top(L);
 }
diff --git a/lfunc.c b/lfunc.c
index bd885caa..7117b783 100644
--- a/lfunc.c
+++ b/lfunc.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lfunc.c,v 1.67 2003/03/18 12:50:04 roberto Exp roberto $
+** $Id: lfunc.c,v 1.68 2003/10/02 19:21:09 roberto Exp roberto $
 ** Auxiliary functions to manipulate prototypes and closures
 ** See Copyright Notice in lua.h
 */
@@ -45,6 +45,15 @@ Closure *luaF_newLclosure (lua_State *L, int nelems, TObject *e) {
 }
 
 
+UpVal *luaF_newupval (lua_State *L) {
+  UpVal *p = luaM_new(L, UpVal);
+  luaC_link(L, valtogco(p), LUA_TUPVAL);
+  p->v = &p->value;
+  setnilvalue(p->v);
+  return p;
+}
+
+
 UpVal *luaF_findupval (lua_State *L, StkId level) {
   GCObject **pp = &L->openupval;
   UpVal *p;
diff --git a/lfunc.h b/lfunc.h
index 34aa9d1a..ae55e289 100644
--- a/lfunc.h
+++ b/lfunc.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lfunc.h,v 1.20 2002/06/20 20:41:46 roberto Exp roberto $
+** $Id: lfunc.h,v 1.21 2003/03/18 12:50:04 roberto Exp roberto $
 ** Auxiliary functions to manipulate prototypes and closures
 ** See Copyright Notice in lua.h
 */
@@ -14,6 +14,7 @@
 Proto *luaF_newproto (lua_State *L);
 Closure *luaF_newCclosure (lua_State *L, int nelems);
 Closure *luaF_newLclosure (lua_State *L, int nelems, TObject *e);
+UpVal *luaF_newupval (lua_State *L);
 UpVal *luaF_findupval (lua_State *L, StkId level);
 void luaF_close (lua_State *L, StkId level);
 void luaF_freeproto (lua_State *L, Proto *f);