diff --git a/skywalking.c b/skywalking.c
index f9fc49aca57c1eeb9441fcbad3023d2925de6593..eed17bbf897213d2c5defa6e079668a8b934f795 100644
--- a/skywalking.c
+++ b/skywalking.c
@@ -68,6 +68,7 @@ static int application_instance = 0;
 static int application_id = 0;
 static int sky_close = 0;
 static int sky_increment_id = 0;
+char *uuid = NULL;
 
 /* {{{ PHP_INI
  */
@@ -706,6 +707,7 @@ static void request_init() {
     add_assoc_long(&SKYWALKING_G(UpstreamSegment), "pid", getppid());
     add_assoc_long(&SKYWALKING_G(UpstreamSegment), "application_id", application_id);
     add_assoc_long(&SKYWALKING_G(UpstreamSegment), "version", SKYWALKING_G(version));
+    add_assoc_string(&SKYWALKING_G(UpstreamSegment), "uuid", uuid);
 	SKY_ADD_ASSOC_ZVAL(&SKYWALKING_G(UpstreamSegment), "segment");
 	SKY_ADD_ASSOC_ZVAL(&SKYWALKING_G(UpstreamSegment), "globalTraceIds");
 
diff --git a/src/greeter_client.cc b/src/greeter_client.cc
index 1343df5b749df9cc283c37d6435d91415c883959..332c774a27b3d1171607048e583ce511603a7a01 100644
--- a/src/greeter_client.cc
+++ b/src/greeter_client.cc
@@ -45,8 +45,8 @@ extern "C" void networkAddressRegister();
 
 extern "C" void endpointRegister();
 
-
-static boost::uuids::uuid uuid = boost::uuids::random_generator()();
+extern char *uuid;
+static boost::uuids::uuid boost_uuid = boost::uuids::random_generator()();
 
 class GreeterClient {
 public:
@@ -84,9 +84,15 @@ public:
         ServiceInstances request;
         ServiceInstance *s = request.add_instances();
 
+        if (uuid == NULL) {
+            std::string uuid_str = boost::uuids::to_string(boost_uuid);
+            uuid = (char *) malloc(uuid_str.size() + 1);
+            bzero(uuid, uuid_str.size() + 1);
+            strncpy(uuid, uuid_str.c_str(), uuid_str.size() + 1);
+        }
 
         s->set_serviceid(applicationid);
-        s->set_instanceuuid(boost::uuids::to_string(uuid));
+        s->set_instanceuuid(std::string(uuid));
         s->set_time(registertime);
 
         KeyStringValuePair *os = s->add_properties();
@@ -120,8 +126,8 @@ public:
                 std::cout << "Register Instance:"<< std::endl;
                 std::cout << kv.key() << ": " << kv.value() << std::endl;
 
-                if (kv.key() == boost::uuids::to_string(uuid)) {
-                    std::cout << "uuid" << ": " << boost::uuids::to_string(uuid) << std::endl;
+                if (kv.key() == uuid) {
+                    std::cout << "uuid" << ": " << uuid << std::endl;
                     return kv.value();
                 }
             }