diff --git a/linit.c b/linit.c
index ed105956..b2142da5 100644
--- a/linit.c
+++ b/linit.c
@@ -1,5 +1,5 @@
 /*
-** $Id: linit.c,v 1.36 2014/12/06 20:42:58 roberto Exp roberto $
+** $Id: linit.c,v 1.37 2014/12/09 15:00:17 roberto Exp roberto $
 ** Initialization of libraries for lua.c and other clients
 ** See Copyright Notice in lua.h
 */
@@ -8,9 +8,6 @@
 #define linit_c
 #define LUA_LIB
 
-#include "lprefix.h"
-
-
 /*
 ** If you embed Lua in your program and need to open the standard
 ** libraries, call luaL_openlibs in your program. If you need a
@@ -27,6 +24,11 @@
 **  lua_pop(L, 1);  // remove _PRELOAD table
 */
 
+#include "lprefix.h"
+
+
+#include <stddef.h>
+
 #include "lua.h"
 
 #include "lualib.h"
diff --git a/lopcodes.c b/lopcodes.c
index bfc3d5fc..10d4bbce 100644
--- a/lopcodes.c
+++ b/lopcodes.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lopcodes.c,v 1.53 2013/12/30 20:47:58 roberto Exp roberto $
+** $Id: lopcodes.c,v 1.54 2014/11/02 19:19:04 roberto Exp roberto $
 ** Opcodes for Lua virtual machine
 ** See Copyright Notice in lua.h
 */
@@ -10,6 +10,8 @@
 #include "lprefix.h"
 
 
+#include <stddef.h>
+
 #include "lopcodes.h"