diff --git a/reference/yaf/book.xml b/reference/yaf/book.xml
index c215a39313..e7d4f47dda 100644
--- a/reference/yaf/book.xml
+++ b/reference/yaf/book.xml
@@ -17,7 +17,7 @@
    version of PHP.
   </para>
   <para>
-   A simple Yaf performance benchmarks can be found at <link
+   A simple Yaf benchmark can be found at <link
     xlink:href="&url.yaf.benchmarks;">Yaf Performance</link>.
   </para>
  </preface>