diff --git a/reference/stream/functions/stream-set-timeout.xml b/reference/stream/functions/stream-set-timeout.xml
index a0416875ae..3bcb9bc795 100644
--- a/reference/stream/functions/stream-set-timeout.xml
+++ b/reference/stream/functions/stream-set-timeout.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.8 $ -->
+<!-- $Revision: 1.9 $ -->
 <!-- splitted from ./en/functions/network.xml, last change in rev 1.18 -->
   <refentry id="function.stream-set-timeout">
    <refnamediv>
@@ -62,6 +62,13 @@ if (!$fp) {
       may support this function.
      </simpara>
     </note>
+    <note>
+     <para>
+      This function doesn't work with advanced operations like
+      <function>stream_socket_recvfrom</function>, use
+      <function>stream_select</function> with timeout parameter instead.
+     </para>
+    </note>
     <para>
      This function was previously called as
      <function>set_socket_timeout</function> and later