diff --git a/liolib-copy.c b/liolib-copy.c
index 81a5c16..08d6cb2 100644
--- a/liolib-copy.c
+++ b/liolib-copy.c
@@ -365,7 +365,7 @@ FILE **liolib_copy_newfile(lua_State *L)
   p->f = NULL;
   p->closef = &io_fclose;
   luaL_setmetatable(L, LUA_FILEHANDLE);
-  return p;
+  return (FILE **)p;
 #else	// #if defined(SHARE_LIOLIB) && defined(LUA_VERSION_NUM) && LUA_VERSION_NUM >= 502
     FILE **pf = (FILE **)lua_newuserdata(L, sizeof(FILE *));
     *pf = NULL;  /* file handle is currently `closed' */