diff --git a/reference/yar/constants.xml b/reference/yar/constants.xml
index a540dd87f2..665d3d821f 100644
--- a/reference/yar/constants.xml
+++ b/reference/yar/constants.xml
@@ -28,7 +28,7 @@
    </varlistentry>
    <varlistentry xml:id="constant.yar-client-opt-packager">
     <term>
-     <constant>YAR_CLIENT_OPT_PACKAGER</constant>
+     <constant>YAR_OPT_PACKAGER</constant>
      (<type>integer</type>)
     </term>
     <listitem>
@@ -38,7 +38,7 @@
    </varlistentry>
    <varlistentry xml:id="constant.yar-client-opt-timeout">
     <term>
-     <constant>YAR_CLIENT_OPT_TIMEOUT</constant>
+     <constant>YAR_OPT_TIMEOUT</constant>
      (<type>integer</type>)
     </term>
     <listitem>
@@ -48,7 +48,7 @@
    </varlistentry>
    <varlistentry xml:id="constant.yar-client-opt-connect-timeout">
     <term>
-     <constant>YAR_CLIENT_OPT_CONNECT_TIMEOUT</constant>
+     <constant>YAR_OPT_CONNECT_TIMEOUT</constant>
      (<type>integer</type>)
     </term>
     <listitem>
@@ -56,6 +56,16 @@
      </simpara>
     </listitem>
    </varlistentry>
+   <varlistentry xml:id="constant.yar-client-opt-connect-timeout">
+    <term>
+     <constant>YAR_OPT_HEADER</constant>
+     (<type>array</type>)
+    </term>
+    <listitem>
+     <simpara>
+     </simpara>
+    </listitem>
+   </varlistentry>
    <varlistentry xml:id="constant.yar-packager-php">
     <term>
      <constant>YAR_PACKAGER_PHP</constant>
diff --git a/reference/yar/yar_client/setopt.xml b/reference/yar/yar_client/setopt.xml
index fb4e3fc134..10e95be206 100644
--- a/reference/yar/yar_client/setopt.xml
+++ b/reference/yar/yar_client/setopt.xml
@@ -31,6 +31,7 @@
         YAR_OPT_PERSISTENT (Need server support),
         YAR_OPT_TIMEOUT,
         YAR_OPT_CONNECT_TIMEOUT
+        YAR_OPT_HEADER (Since 2.0.4)
      </para>
     </listitem>
    </varlistentry>
@@ -68,6 +69,9 @@ $client->SetOpt(YAR_OPT_CONNECT_TIMEOUT, 1000);
 //Set packager to JSON
 $client->SetOpt(YAR_OPT_PACKAGER, "json");
 
+//Set Custom headers
+$client->SetOpt(YAR_OPT_HEADER, array("hr1: val1", "hd2: val2"));
+
 /* call remote service */
 $result = $client->some_method("parameter");
 ?>