diff --git a/reference/strings/functions/echo.xml b/reference/strings/functions/echo.xml
index d559d4f085..6a7a48fa11 100644
--- a/reference/strings/functions/echo.xml
+++ b/reference/strings/functions/echo.xml
@@ -27,10 +27,10 @@
   </para>
   <para>
    <literal>echo</literal> also has a shortcut syntax, where you can
-   immediately follow the opening tag with an equals sign. This short syntax
-   only works with the <link
-   linkend="ini.short-open-tag">short_open_tag</link> configuration setting
-   enabled.
+   immediately follow the opening tag with an equals sign. Prior to PHP 5.4.0,
+   this short syntax only works with the
+   <link linkend="ini.short-open-tag">short_open_tag</link> configuration
+   setting enabled.
    <informalexample>
     <programlisting role="php">
 <![CDATA[