diff --git a/reference/math/functions/expm1.xml b/reference/math/functions/expm1.xml
index cfd80a1e79..49b55039c2 100644
--- a/reference/math/functions/expm1.xml
+++ b/reference/math/functions/expm1.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.63 -->
   <refentry id='function.expm1'>
    <refnamediv>
     <refname>expm1</refname>
     <refpurpose>
-     Returns exp(number) - 1, computed in a way that accurate even
+     Returns exp(number) - 1, computed in a way that is accurate even
      when the value of number is close to zero
     </refpurpose>
    </refnamediv>