diff --git a/reference/pcntl/constants.xml b/reference/pcntl/constants.xml
index c1be868247de..6cdc11113063 100644
--- a/reference/pcntl/constants.xml
+++ b/reference/pcntl/constants.xml
@@ -80,6 +80,17 @@
     </simpara>
    </listitem>
   </varlistentry>
+  <varlistentry xml:id="constant.siginfo">
+   <term>
+    <constant>SIGINFO</constant>
+    (<type>int</type>)
+   </term>
+   <listitem>
+    <simpara>
+
+    </simpara>
+   </listitem>
+  </varlistentry>
   <varlistentry xml:id="constant.sigint">
    <term>
     <constant>SIGINT</constant>