diff --git a/config.w32 b/config.w32
index 51aa3bd0..76d4ee3c 100644
--- a/config.w32
+++ b/config.w32
@@ -5,6 +5,7 @@ ARG_ENABLE('memcached', 'libmemcached extension', 'no');
 ARG_ENABLE('memcached-session', 'whether to enable memcached session handler support', 'no');
 ARG_ENABLE('memcached-igbinary', 'whether to enable memcached igbinary serializer support', 'no');
 ARG_ENABLE('memcached-json', 'whether to enable memcached json serializer support', 'no');
+ARG_ENABLE('memcached-msgpack', 'whether to enable memcached msgpack serializer support', 'no');
 
 if (PHP_MEMCACHED == "yes") {
 
@@ -35,7 +36,13 @@ if (PHP_MEMCACHED == "yes") {
 		ERROR("memcached: header 'igbinary.h' not found");
 	  }
   }
-  
+  if (PHP_MEMCACHED_MSGPACK != "no"){
+	AC_DEFINE("HAVE_MEMCACHED_MSGPACK",1);
+	ADD_EXTENSION_DEP("memcached", "msgpack", true);
+	if (!CHECK_HEADER_ADD_INCLUDE("php_msgpack.h", "CFLAGS_MEMCACHED")) {
+		ERROR("memcached: header 'php_msgpack.h' not found");
+	  }
+  }
   EXTENSION("memcached", "php_memcached.c php_libmemcached_compat.c g_fmt.c"+memcached_extra_src, null, " /DHAVE_SSIZE_T");
   ADD_SOURCES(configure_module_dirname+"\\fastlz", "fastlz.c", "memcached");
   AC_DEFINE("HAVE_MEMCACHED", 1, "memcached support");