diff --git a/src/main/php/peer/http/HttpConnection.class.php b/src/main/php/peer/http/HttpConnection.class.php
index 234952e9..7d5fed59 100755
--- a/src/main/php/peer/http/HttpConnection.class.php
+++ b/src/main/php/peer/http/HttpConnection.class.php
@@ -44,9 +44,9 @@ public function __construct($url, $transport= null) {
   /**
    * Set proxy
    *
-   * @param   peer.http.HttpProxy $proxy
+   * @param  ?peer.http.HttpProxy $proxy
    */
-  public function setProxy(HttpProxy $proxy= null) {
+  public function setProxy($proxy= null) {
     $this->transport->setProxy($proxy);
   }
 
diff --git a/src/main/php/peer/http/HttpRequest.class.php b/src/main/php/peer/http/HttpRequest.class.php
index 3167767e..7031ff2c 100755
--- a/src/main/php/peer/http/HttpRequest.class.php
+++ b/src/main/php/peer/http/HttpRequest.class.php
@@ -25,7 +25,7 @@ class HttpRequest {
    *
    * @param   peer.URL url object
    */
-  public function __construct(URL $url= null) {
+  public function __construct($url= null) {
     if (null !== $url) $this->setUrl($url);
   }
 
diff --git a/src/main/php/peer/http/HttpTransport.class.php b/src/main/php/peer/http/HttpTransport.class.php
index 29be1f3b..d6ee71d8 100755
--- a/src/main/php/peer/http/HttpTransport.class.php
+++ b/src/main/php/peer/http/HttpTransport.class.php
@@ -45,9 +45,9 @@ abstract public function __construct(URL $url, $arg);
   /**
    * Set proxy
    *
-   * @param   peer.http.HttpProxy proxy
+   * @param  ?peer.http.HttpProxy $proxy
    */
-  public function setProxy(HttpProxy $proxy= null) {
+  public function setProxy($proxy= null) {
     $this->proxy= $proxy;
   }
 
diff --git a/src/main/php/peer/http/SocketHttpTransport.class.php b/src/main/php/peer/http/SocketHttpTransport.class.php
index 75be2103..ce1f6ec1 100755
--- a/src/main/php/peer/http/SocketHttpTransport.class.php
+++ b/src/main/php/peer/http/SocketHttpTransport.class.php
@@ -38,9 +38,9 @@ protected function newSocket(URL $url, $arg) {
   /**
    * Set proxy
    *
-   * @param   peer.http.HttpProxy proxy
+   * @param  ?peer.http.HttpProxy proxy
    */
-  public function setProxy(HttpProxy $proxy= null) {
+  public function setProxy($proxy= null) {
     parent::setProxy($proxy);
     $this->proxySocket= $proxy ? new Socket($proxy->host(), $proxy->port()) : null;
   }
diff --git a/src/test/php/peer/http/unittest/HttpTransportTest.class.php b/src/test/php/peer/http/unittest/HttpTransportTest.class.php
index bf4f268e..7b7beb61 100755
--- a/src/test/php/peer/http/unittest/HttpTransportTest.class.php
+++ b/src/test/php/peer/http/unittest/HttpTransportTest.class.php
@@ -18,7 +18,7 @@ public function __construct(\peer\URL $url, $arg) {
         $this->arg= $arg;
       }
 
-      public function setProxy(\peer\http\HttpProxy $proxy= null) {
+      public function setProxy($proxy= null) {
         $this->proxy= $proxy;
       }