diff --git a/language/types/string.xml b/language/types/string.xml
index 5e2100898b..bf449a8cb9 100644
--- a/language/types/string.xml
+++ b/language/types/string.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <sect1 xml:id="language.types.string">
  <title>Strings</title>
 
@@ -45,7 +45,7 @@
    <listitem>
     <simpara>
      <link linkend="language.types.string.syntax.nowdoc">nowdoc syntax</link>
-     (since PHP 5.3)
+     (since PHP 5.3.0)
     </simpara>
    </listitem>
   </itemizedlist>
@@ -395,7 +395,7 @@ EOT;
 
    <note>
     <para>
-     Nowdoc support was added in PHP 5.3.
+     Nowdoc support was added in PHP 5.3.0.
     </para>
    </note>