diff --git a/config.m4 b/config.m4
index 5a3fe1a..6178d4e 100644
--- a/config.m4
+++ b/config.m4
@@ -5,6 +5,15 @@ Make sure that the comment is aligned:
 [  --with-msgpack             Include msgpack support])
 
 if test "$PHP_MSGPACK" != "no"; then
+  AC_MSG_CHECKING([for APC/APCU includes])
+  if test -f "$phpincludedir/ext/apcu/apc_serializer.h"; then
+    apc_inc_path="$phpincludedir"
+    AC_MSG_RESULT([APCU in $apc_inc_path])
+    AC_DEFINE(HAVE_APCU_SUPPORT,1,[Whether to enable apcu support])
+  else
+    AC_MSG_RESULT([not found])
+  fi
+
   PHP_NEW_EXTENSION(msgpack, msgpack.c msgpack_pack.c msgpack_unpack.c msgpack_class.c msgpack_convert.c, $ext_shared)
 
   ifdef([PHP_INSTALL_HEADERS],
diff --git a/msgpack.c b/msgpack.c
index bc01848..1d332b5 100644
--- a/msgpack.c
+++ b/msgpack.c
@@ -13,6 +13,10 @@
 #include "ext/session/php_session.h" /* for php_session_register_serializer */
 #endif
 
+#if defined(HAVE_APCU_SUPPORT)
+#include "ext/apcu/apc_serializer.h"
+#endif /* HAVE_APCU_SUPPORT */
+
 #include "php_msgpack.h"
 #include "msgpack_pack.h"
 #include "msgpack_unpack.h"
@@ -54,6 +58,12 @@ PHP_INI_END()
 PS_SERIALIZER_FUNCS(msgpack);
 #endif
 
+#if defined(HAVE_APCU_SUPPORT)
+/** Apc serializer function prototypes */
+static int APC_SERIALIZER_NAME(msgpack) (APC_SERIALIZER_ARGS);
+static int APC_UNSERIALIZER_NAME(msgpack) (APC_UNSERIALIZER_ARGS);
+#endif
+
 static zend_function_entry msgpack_functions[] = {
     ZEND_FE(msgpack_serialize, arginfo_msgpack_serialize)
     ZEND_FE(msgpack_unserialize, arginfo_msgpack_unserialize)
@@ -88,6 +98,13 @@ static ZEND_MINIT_FUNCTION(msgpack) /* {{{ */ {
     php_session_register_serializer("msgpack", PS_SERIALIZER_ENCODE_NAME(msgpack), PS_SERIALIZER_DECODE_NAME(msgpack));
 #endif
 
+#if defined(HAVE_APCU_SUPPORT)
+    apc_register_serializer("msgpack",
+        APC_SERIALIZER_NAME(msgpack),
+        APC_UNSERIALIZER_NAME(msgpack),
+        NULL);
+#endif
+
     msgpack_init_class();
 
     REGISTER_LONG_CONSTANT("MESSAGEPACK_OPT_PHPONLY",
@@ -109,6 +126,11 @@ static ZEND_MINFO_FUNCTION(msgpack) /* {{{ */ {
     php_info_print_table_row(2, "MessagePack Support", "enabled");
 #if HAVE_PHP_SESSION
     php_info_print_table_row(2, "Session Support", "enabled" );
+#endif
+#if defined(HAVE_APCU_SUPPORT)
+    php_info_print_table_row(2, "MessagePack APCu Serializer ABI", APC_SERIALIZER_ABI);
+#else
+    php_info_print_table_row(2, "MessagePack APCu Serializer ABI", "no");
 #endif
     php_info_print_table_row(2, "extension Version", PHP_MSGPACK_VERSION);
     php_info_print_table_row(2, "header Version", MSGPACK_VERSION);
@@ -300,6 +322,30 @@ static ZEND_FUNCTION(msgpack_unserialize) /* {{{ */ {
 }
 /* }}} */
 
+#if defined(HAVE_APCU_SUPPORT)
+static int APC_SERIALIZER_NAME(msgpack) ( APC_SERIALIZER_ARGS ) /* {{{ */ {
+    smart_str res = {0};
+    php_msgpack_serialize(&res, (zval *) value);
+
+    if (res.s) {
+        smart_str_0(&res);
+        *buf = (unsigned char *) estrndup(ZSTR_VAL(res.s), ZSTR_LEN(res.s));
+        *buf_len = ZSTR_LEN(res.s);
+        return 1;
+    }
+    return 0;
+}
+/* }}} */
+
+static int APC_UNSERIALIZER_NAME(msgpack) ( APC_UNSERIALIZER_ARGS ) /* {{{ */ {
+    if (buf_len > 0 && php_msgpack_unserialize(value, buf, buf_len) == SUCCESS) {
+        return 1;
+    }
+    return 0;
+}
+/* }}} */
+#endif
+
 /*
  * Local variables:
  * tab-width: 4
diff --git a/tests/029.phpt b/tests/029.phpt
index a7e3887..45eb732 100644
--- a/tests/029.phpt
+++ b/tests/029.phpt
@@ -44,6 +44,7 @@ msgpack
 
 MessagePack Support => enabled
 Session Support => enabled
+MessagePack APCu Serializer ABI => %s
 extension Version => %s
 header Version => %s
 
diff --git a/tests/apcu.phpt b/tests/apcu.phpt
new file mode 100644
index 0000000..7f1c554
--- /dev/null
+++ b/tests/apcu.phpt
@@ -0,0 +1,63 @@
+--TEST--
+APCu serialization
+--INI--
+apc.enabled=1
+apc.enable_cli=1
+apc.serializer=msgpack
+--SKIPIF--
+<?php
+if (!extension_loaded("msgpack")) print "skip";
+if (!extension_loaded("apcu")) {
+   echo "skip needs APCu enabled";
+}
+?>
+--FILE--
+<?php
+echo ini_get('apc.serializer'), "\n";
+
+apcu_store('foo', 100);
+var_dump(apcu_fetch('foo'));
+
+$foo = 'hello world';
+
+apcu_store('foo', $foo);
+var_dump(apcu_fetch('foo'));
+
+apcu_store('foo\x00bar', $foo);
+var_dump(apcu_fetch('foo\x00bar'));
+
+apcu_store('foo', ['foo' => $foo]);
+var_dump(apcu_fetch('foo'));
+
+class Foo {
+    public $int = 10;
+    protected $array = [];
+    private $string = 'foo';
+}
+
+$a = new Foo;
+apcu_store('foo', $a);
+unset($a);
+var_dump(apcu_fetch('foo'));
+
+?>
+===DONE===
+--EXPECT--
+msgpack
+int(100)
+string(11) "hello world"
+string(11) "hello world"
+array(1) {
+  ["foo"]=>
+  string(11) "hello world"
+}
+object(Foo)#1 (3) {
+  ["int"]=>
+  int(10)
+  ["array":protected]=>
+  array(0) {
+  }
+  ["string":"Foo":private]=>
+  string(3) "foo"
+}
+===DONE===