diff --git a/reference/errorfunc/functions/trigger-error.xml b/reference/errorfunc/functions/trigger-error.xml
index 1951212cde..0959453d7f 100644
--- a/reference/errorfunc/functions/trigger-error.xml
+++ b/reference/errorfunc/functions/trigger-error.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.8 $ -->
+<!-- $Revision: 1.9 $ -->
 <!-- splitted from ./en/functions/errorfunc.xml, last change in rev 1.1 -->
   <refentry id="function.trigger-error">
    <refnamediv>
@@ -11,7 +11,7 @@
    <refsect1>
     <title>Description</title>
      <methodsynopsis>
-      <type>void</type><methodname>trigger_error</methodname>
+      <type>bool</type><methodname>trigger_error</methodname>
       <methodparam><type>string</type><parameter>error_msg</parameter></methodparam>
       <methodparam choice="opt"><type>int</type><parameter>error_type</parameter></methodparam>
      </methodsynopsis>
@@ -22,6 +22,10 @@
      (<function>set_error_handler</function>). It only works with the E_USER
      family of constants, and will default to <constant>E_USER_NOTICE</constant>.
     </para>
+    <para>
+     This function returns &false; if wrong <parameter>error_type</parameter> is
+     specified, &true; otherwise.
+    </para>
     <para>
      This function is useful when
      you need to generate a particular response to an exception at runtime.